Dehumidification units
FlexoPool
®
Product Overview and System description
Air handling with the focus on LCC
IV Produkt
IV Produkt develops, produces and markets environmentally compatible and energyefficient air handling products. We’ve been doing so since 1969. Today, we are one of Sweden’s leading manufacturers.
Product Development
We make strict demands on design ingenuity as we develop new products and production methods. Our aim is to save you time and the resources needed for installing, operating and maintaining our products.
Quality and Environmental Awareness Our quality management system is certified to ISO 9001.
This guarantees clients and users alike prime quality and reliable performance throughout the useful life of our products.
We are also constantly involved in making our products energy efficient. The life cycle cost, i.e. the collective cost for procurement, operation, maintenance and minimal environmental impact, is always incorporated into our calculations when we develop new products and product selection software. Our goal is to offer you products with minimal life cycle cost.
We develop and fabricate our products according to the guidelines of our environmental management system, certified to ISO 14001. The environmental compatibility of the products is rated on the basis of the materials they contain and the propensity of these materials for recycling.
Eurovent
IV Produkt Designer
Our products are tested by Eurovent according to EN 1886 and EN 13053 Standards. This assures you that the perforance data that we present in our specifications have been verified by an independent testing laboratory. www.eurovent-certification.com
Our product selection program is there to make your job easier – selecting the right air handling units for your application or for contacting our sales organisation.
IV Produkt’s head office and production facilities are situated in Växjö, Sweden. The company is owned by IV Produkt Holding AB.
The best solutions are based on vast experience.
Fresh air in indoor swimming pool facilities
Reliability
FlexoPool utilizes fresh air to create a healthy indoor climate in indoor swimming pool facilities and this means happier guests. Dry outdoor air is used for dehumidifying the indoor swimming pool facility; therefore a maximal amount of the energy in the extract air can be recovered in a heat exchanger and heat pump and recycled back to the facility, which provides better heat recovery.
The ventilation unit is the heart and lungs of the indoor swimming pool, and, just like those inside our bodies, must never stop. FlexoPool has been developed for Scandinavian climatic conditions and is a simple system solution that provides maximal operational reliability. Every unit is supplied with function-tested control equipment of well-known brands that offer provision for connecting up to the building’s DHC monitoring system.
The right indoor climate
Low operating costs
In environments such as those inside indoor swimming pool facilities, the dehumidification system must be adequately sized and offer high operational reliability. During the cold months of the year, the indoor swimming pool facilities can be compared with a pressure cooker. If humidity is pressed out into the building structure, moisture damage will result. The dehumidification function must be dependable. The dehumidification and temperature control system is season-adaptable. Provision is available to boost the airflow in the summer when it is hot and humid outdoors.
In addition to the heat exchanger, the FlexoPool can be equipped with heat pump for maximal heat recovery. The heat recovery capacity is sized according to the specific needs of the ventilation system. FlexoPool is available in 8 standard sizes with airflows between 0.5 m³/s and 6 m³/s for a broad range of applications, for instance from small hotel pools to large adventure pool water parks. If your application requires larger sizes, contact IV Produkt.
Air handling with the focus on LCC
Main operating conditions Daytime operation in the winter, dehumidification needed
Indoor air is dehumidified and a variable amount of fresh air is mixed in depending on the degree of dehumidification required. The heat exchanger operates at full energy recovery capacity. The heat pump produces hot water whenever required. Min. fresh air intake.
Winter/summer transitional period, dehumidification needed
Indoor air is dehumidified and a variable amount of fresh air is mixed in depending on the degree of dehumidification required. The heat exchanger operates at 0-100% energy recovery capacity. The heat pump produces hot water whenever required. Min. fresh air intake.
Summer, dehumidification needed A full amount of fresh air is mixed into to indoor air depending on the degree of dehumidification required. The heat exchanger operates at 0-100% capacity as required. The heat pump produces hot water whenever required. 100 % fresh air intake.
Night-time operation, no dehumidification needed
100 % circulation at night when dehumidification is not required. The supply air is heated if necessary to compensate for the transmission loss in the indoor swimming pool facility. The heat pump is not in operation. The supply air fan is running and the extract air fan is shut down. If dehumidification is required, the unit switches back to the “Daytime winter with dehumidification load” operating mode.
Principal coupling of the heat pump
Air handling with the focus on LCC
Whenever there is a need to dehumidify the air, the heat pump produces 50 degree water for the swimming pool, radiators, reheating coils, etc., for instance. If the heat produced by the heat pump is not enough, the remaining heat needed can be supplied from an external heat source.
Quick Selection Chart Unit selection based on total pool surface area
Delivery configuration
Heat pump
100 150 190 240 300 360 480 600 XL
If your application requires larger sizes, contact IV Produkt.
Total pool surface area 30
m2
40
50
60
70 80 90 100
150
200
300
400
500
600
0,4
0,5
0,6 0,7 0,8 0,9 1,0
1,5
2
3
4
5
6
m 3/s
20000
m 3/h
Airflow 0,3
1000
5000
10000
Versions The unit is available in four standard versions:
Fig. 1
Fig. 2
Fig. 3
Fig. 4
Air handling with the focus on LCC
Sizing Data for FlexoPool For final sizing, heat pump selection and an energy estimate, fill in the following information below and fax the form to IV Produkt: Fax no. +46-470 75 88 77. Name of project:.................................................................................................Date:................................................ Company/Organisation:.............................................................Who to contact:....................................................... Address:...................................................................................................................................................................... Phone:............................................Fax:...............................................E-mail:............................................................ Indoor conditions
Pool 1
Pool 2
Design air temperature (Rec.: 2 ˚C above water temp.)
..............
..............
°C
Design relative humidity (Rec.: RH 55%)
..............
..............
%
Design water temperature in pool (Rec.: 28 ˚C)
..............
..............
°C
Design outdoor air temperature, summer
..............
..............
°C
Design outdoor air temperature, winter
..............
..............
°C
Design mean annual temperature
..............
..............
°C
Size of pool
..............
..............
m2
Indoor swimming pool facility – volume
..............
..............
m3
Window sections
Window height < 2 m
..............
..............
lpm
Window height > 2 < 8 m
..............
..............
lpm
Heating load in indoor swimming pool building
..............
..............
kW
Supplementary heat
..............
..............
wa/el.
..............
°C
Outdoor conditions
Building data
Heating data
Water temperature, supplementary heat
in
..............°C
out
Other activities in the indoor swimming bath Water slide, covered
..............
lpm
open
.............
lpm
Current channels
..............
lpm
Piste
.............
m2
Bubble pool
..............
°C
..............
m2
Other activities
..............
kg/h
..............
Pa
..............
no/h
System data Available duct pressure
Supply air
Min. number of air changes at DUT
..............
Pa
Extract air
(Rec: once/hour)
Supply air filter (standard EU7)
EU
..............
Extract air filter (standard EU7)
EU
..............
Operating times
Day
..............
hours/year
Energy prices
Power
..............
cost/kWh
Water
..............
cost/kWh
..............
Ye s / N o
Power required, heating from heat pump
..............
kW
EVH Heat pump
= Mandatory data required for unit sizing IV Produkt AB, P.O. 3103, SE-350 43 VÄXJÖ, SWEDEN Phone +46-470 75 88 00 • Fax +46-470 75 88 76
[email protected] • www.ivprodukt.se Air handling with the focus on LCC
Air handling with the focus on LCC
Dim_data Flexobad_Final.indd
2
2003-12-19, 15:29
Air handling with the focus on LCC
FlexoPool
Contents Overview
General Technical Description..........................................................................................................................................2 Design......................................................................................................................................................................................... 2 Sizing........................................................................................................................................................................................... 2 Installation. ............................................................................................................................................................................... 2 Commissioning...................................................................................................................................................................... 2 Standards.................................................................................................................................................................................. 3
Description of the Unit............................................................................................................................................................4 Unit
Capacity and Techical Data. ........................................................................................................................................... 4 Delivery Configuration........................................................................................................................................................ 5
Unit Components.........................................................................................................................................................................6 Accessories
FlexoPool Heat Recovery Section (Code EXG).................................................................................................... 7 Exhaust Air Section (Code EAD)................................................................................................................................... 8 Other unit components are described in the Flexomix Product Catalogue.
Accessories Enviheater Pool (Code EVH-B) ..................................................................................................................................... 9 Pipework Components (Code EADT-01)................................................................................................................11
Controls
Control Equipment. ................................................................................................................................................................. 12 Basic Flow Chart.................................................................................................................................................................14
PFP070601.01GB
Continuous product development may give rise to specification changes without notice.
FlexoPool
General Technical Description
General Technical Description Design
Covers and Locks
FlexoPool is an air handling unit designed for dehumidifying, ventilating, energy recovery and heating air in indoor swimming pools. The air handling unit has an airflow range of 0.5 to 6.0 m³/s.
1 2
Dehumidification takes place by means of the intermixture of a variable volume of outdoor air into the circulation air. The air handling unit is supplied with fully wired and function-tested control equipment, or the air handling unit can be supplied without control equipment.
3
The heat exchanger and the heat recovery coil have specially treated surfaces. The drip trays have a powder painted and baked finish. The condensate drain is made of plastic. The damper is made of aluminium.
Casing
1. Profiled sections made of anodized aluminium 2. Covers of double-skin design 3. Lock with cam latch
The unit sections are composed of extruded and anodized aluminium profiled frame members. The covers and panels are of double-skin design made of aluminium/zinc-plated sheet steel with ALC protected exterior surface that meets the provisions of Corrosion Class C4.
All the inspection panels are hung on adjustable hinges. The Door lock has a cam latch as standard. The doors in front of moving parts can be locked with a key.
The intervening insulation consists as standard of 25 mm thick fire-resistant mineral wool.
For sizing the air handling units, please refer to the IV Produkt Designer software and the Flexomix Product Catalogue.
The casing conforms to the provisions of Tightness Class B under sub-atmospheric pressure conditions and total heat transfer coefficient T4 according to CEN EN 1886 Standard.
Duct Connections
Sizing
Installation FlexoPool in the standard version should be installed in a plant room where the temperature is constantly between +7 to +30 °C and the humidity during the cold season is less than 3.5 g/kg air.
Arrangement FlexoPool is as standard mounted on support beams with adjustable feet.
Electrical Connections The EVH heat pump should be wired to the air handling unit by another contractor.
Commissioning The FlexoPool must be commissioned by accredited staff from IV Produkt AB. The unit has rectangular connection flanges designed for slip-clamp connection or a bolted joint, i.e. bolted in the corners; so-called METU connection.
PFP070601.01GB
Continuous product development may give rise to specification changes without notice.
FlexoPool
General Technical Description
Standards Overview
The air handling units in the FlexoPool series supplied with mounted control equipment and ready to be commissioned, are CE labelled. Other units are supplied with a Manufacturer’s Declaration of Conformity. This signifies that the air handling unit on delivery conforms to applicable provisions stated in the EU Machinery Directive, 98/37/EG.
Unit
The air handling unit also conforms, among others, to the following standards: SS-EN ISO 12100-1, SS-EN ISO 12100-2 PED 97/23/EC
Accessories
EN 60204-1, ELSÄK 2004:1, SS-EN 60529, SEN 2121, SS 436 4000 EMC Directive 89/336/EEG, EN 50081-1, EN 61000-6-1, EN 61000-6-2:2005, EN 61000-6-3 Low Voltage Directive 73/23/EEG
Controls
CEN EN 1886, VVS AMA-98
PFP070601.01GB
Continuous product development may give rise to specification changes without notice.
FlexoPool
Description of the Unit
Description of the Unit FlexoPool is a complete air handling unit, for indoor swimming pools and water parks. The unit is designed for dehumidifying, ventilating and heating the air as well as recovering heat from the extract air.
• Has heat exchanger coils with built-in, complete, fully filled pipework package of special design for recovering heat from the extract air and transferring it to the supply air.
Dehumidification takes place by means of mixing a variable quantity of outdoor air into the circulation air. Heat is recovered from the extract air by means of an energy recovery section and is transferred directly to the supply air and by means of the Enviheater Pool extract air heat pump to the water.
• For maximal energy recovery, has a free-standing extract air heat pump for heating the water. The heat pump is available as an accessory.
• Available as standard in 8 sizes within the flow range of 0.5 – 6.0 m3/s. If your application requires larger sizes, contact IV Produkt.
• Has computerized control equipment with scope for connecting up to a main control system. • Supplied as blocks or one-piece units complete with control cubicle for power, control and safety equipment, fully assembled, wired and tested at the factory. As an option, the unit is supplied without control equipment.
Capacity and Technical Data Applicable to units with direct-driven fans. Size
100
150
190
240
300
360
480
600
Maximal airflow, SA/EA (m³/s)
1.00
1.50
1.90
2.40
3.00
3.60
4.80
6.00
Nominal airflow, SA/EA, (m³/s)
0.80
1.20
1.52
1.92
2.40
2.88
3.84
4.80
Minimal airflow, SA/EA, (m³/s)
0.50
0.90
1.16
1.47
1.67
2.07
2.67
3.33
Lowest outdoor airflow, DUT (m³/s)
0.17
0.31
0.41
0.51
0.59
0.73
0.93
1.17
Max. dehumidification capacity, (kg/h)
35
52
66
83
104
124
166
207
Motor output, SF 3×400 V 50 Hz * (kW)
1.1
1.5
2.2
2.2
3.0
3.0
5.5
7.5
Motor output, EF 3×400 V 50 Hz * (kW)
1.1
1.5
2.2
2.2
3.0
3.0
5.5
7.5
External duct pressure * SA/EA (Pa)
250
250
250
250
250
250
250
250
–
1610
2410
3110
4020
4820
6220
7830
Heat pump, EVH-B * (size)
* The examples are applicable to rated airflow and 40% outdoor air +5 °C; RH 65% and 60% recirculated air +30 °C; RH 55%.
PFP070601.01GB
Continuous product development may give rise to specification changes without notice.
FlexoPool
Description of the Unit
Delivery Configuration A
Overview
Control cubicle, dimensions for transport 390
J
830
G
740
Del. sec. 1 Del. sec. 2 Del. sec. 3
G a = swung-in control cubicle b = swung-out control cubicle
Del. section 4
Note! Delivery sections 1 and 4 can be separated from sections 2 and 3, if required.
785
285
Accessories
K
Unit
J
mm dia drain conn.
Connection, heat pump coil
K
Controls
mm dia drain conn.
Dimensions (mm) Size
A
B
C
D
E
F
G
H
I
J*
K
L
M*
100
3450
980
1010
105
300
205
480
140
700
630
505
630
1110
150
3900
1080
1390
100
500
195
630
140
800
780
695
780
1410
190
4050
1360
1390
100
500
195
630
180
1000
930
695
780
1560
240
4200
1360
1610
100
600
205
630
180
1000
930
805
930
1560
300
4200
1580
1610
100
600
205
630
190
1200
930
805
930
1560
360
4350
1580
1980
95
800
190
630
190
1200
1080
990
930
1710
480
4500
1950
1980
95
800
190
630
275
1400
1230
990
930
1860
600
4650
2160
2190
150
800
295
630
280
1600
1230
1095
1080
1860
* Dim. with direct-driven fan
Weights (kg) Delivery unit
Extra wgt. for recovery coil in EAD section
Size
1
2
3
4
Total weight
100
94
187
71
228
530
34
150
110
300
105
355
870
55
190
125
354
120
415
1014
65
240
130
397
140
505
1172
80
300
145
438
150
560
1293
90
360
170
506
190
705
1571
110
480
195
610
215
950
1970
135
600
240
716
260
1055
2271
165
PF070404.01SE
Löpande produktutveckling kan medföra ändringar utan föregående meddelande.
FlexoPool
Air Handling Unit Components
Air Handling Unit Components
8. Exhaust air section (Code EAD) Exhaust air section which in its basic design contains a drip tray and drain made of corrosion-resistant material. The section may be equipped with coils for recovering of energy from the extract air i.e. in applications in which a heat pump is used.
1. Filter section, supply air Contains bag filter of optional filter class and U-tube manometer.
2. Heat recovery section
9. Hinged control cubicle
Heat exchanger coils complete with ready-filled liquid circuit, speed-controlled pump and expansion system.
Hinged, pivoting control cubicle containing the following components: main switch, motor groups for fans and circulation pumps, auxiliary relays, time relays for the fans and cooling agent circulation pump.
3. Mixing section Mixing section with built-in dampers made of aluminium.
Microprocessor unit for controlling temperature, humidity and heat pump operation as well as equipment for protecting and monitoring the air handling unit, airflow measurement via computer automation station. Flow diagram inside the front panel of the cubicle.
4. Air heater section Reheating coil for water consisting of copper pipes with aluminium fins or electric reheater consisting of aluminium pipes with aluminium fins.
A. Enviheater Pool, heat pump
5. Fan section, supply air Belt-driven, withdrawable fan with backward-curved blades and single-speed motor or type Windstrong speed-controlled, direct-driven fan.
B. Expansion vessle and cooling medium pump
6. Filter section, extract air
C. Air purging device
(in separate packaging supplied together with unit)
Contains bag filter of optional filter class and U-tube manometer.
(not included in the supply)
D. Pipework and pipe installation
7. Fan section, extract air
(not included in the supply)
Belt-driven, withdrawable fan with backward-curved blades and single-speed motor or type Windstrong speed-controlled, direct-driven fan.
D A
Other unit components are described in the Flexomix Product Catalogue.
C 1
B
8
2
3
4
5
7
9
6 PFP070601.01GB
Continuous product development may give rise to specification changes without notice.
FlexoPool
Configurations
L
Overview
FlexoPool Heat Recovery Section (Code EXG)
Air Handling Unit Components
R
Size
Wgt. (kg)
100
187
300
438
150
300
360
506
190
354
480
610
240
397
600
716
Wiring instructions and fuse protection WIRING DIAGRAM - COIL HEAT RECOVERY FREQUENCY INVERTER L1/L L2 L3/N PE
Design The EXG FlexoPool is assembled and supplied as a complete energy recovery unit and consists of coils in the supply and extract air paths, including pipework and speed-controlled pump.
• Static pressure in the liquid system is monitored via a control manometer with signal contact. A reduction or increase in pressure will stop the circulation pump and initiate an alarm. • Moisture is not recovered from the extract air. However, under low outdoor air temperature conditions, moisture is precipitated and energy is recovered. The condensate is collected in a drip tray equipped with a 32 o.d. drain connection (no water trap is required because the system is under pressure generated by an upstream fan). • The precipitation of moisture involves risk of ice forming on surfaces inside the extract air coil. Possible ice formation is counteracted by regulating the flow of liquid in the system via the speed-controlled circulation pump. • Inspection of coils and other equipment via lockable inspection doors. • The section is supplied on base beams.
230 V POWER SUPPLY + -
12 18
• The system is filled with liquid, vented, adjusted and functionally tested from the factory. • The transfer of heat is controlled by a variable flow of liquid via a frequency-controlled circulation pump. The frequency inverter is inside the unit on the inspection side.
Accessories
Wgt. (kg)
53 55
Controls
The EXG FlexoPool energy recovery section is a recycling unit that operates according to the coil heat recovery principle and is specially designed for resisting corrosive environments.
Size
Unit
Weights
CONTROL 0 - 10 V =
START/STOP
TERMINAL BOX BROWN BLUE
ALARM (CLOSES IN THE EVENT OF AN ALARM)
Motor data Size
Output (W)
Current (A)
Voltage (V)
Fuse (AT)
100–600
750
2.2
230
10
Ordering key EXG -a -b -c -d -e a - Size
100, 150, 190, 240, 300, 360, 480, 600
b - Casing
00 = Standardisolering
c - Tube depth SA
08
d - Tube depth EA
08
e - Supply air
U = Upper air path
PFP070601.01GB
Continuous product development may give rise to specification changes without notice.
FlexoPool
Exhaust Air Section (Code EAD)
EAD Exhaust air section. To be installed downstream of the EXG energy recovery section. The EAD exhaust air section is a complete unit which in its basic design consists of a drip tray and drain made of materials that resist corrosive environments. The EAD can be equipped with cooling water coil for recovering energy from the extract air, for instance if a heat pump is connected to the unit.
Design • The EAD can be equipped with an energy recovery coil for the heat pump.
Air Handling Unit Components
Weights, Pipe Connection Sizes Size
Wgt. (kg) without recov.
Wgt. (kg) with recov.
Recov.: pipe conn o.d. (mm)
100
61
95
35
150
55
105
35
190
60
125
35
240
65
140
35
300
70
160
42
360
75
185
54
480
85
220
54
600
115
285
54
Ordering key EAD -a -b -c a - Size
100, 150, 190, 240, 300, 360, 480, 600
b - Casing
00 = Standard insulation
c - Recov. coil
0 = without 1 = with
• The energy recovery coil has tinned copper tubes with epoxy-treated aluminium fins. The casing is made of sheet steel with ALC protected external surfaces. The pipe connections and the connections for venting and drainage are made of copper. • The energy recovery coil is equipped with an easily withdrawable droplet separator. • The EAD is an inspection-friendly functional section equipped with drip tray and 32 o.d. drain connection (no water trap is required because the system is under pressure from an upstream fan). • The EAD is always supplied on base beams.
PFP070601.01GB
Continuous product development may give rise to specification changes without notice.
FlexoPool
Enviheater Pool (Code EVH-B)
The interior is accessible for service after opening a lockable panel in the front of the unit, and via removable panels on the sides of the unit. Cooling circuits with compressors and exchangers mounted on a vibration-isolated base plate. If there is more than one cooling circuit, the brine and cooling agent circuits are coupled in parallel on the water side.
Overview
Accessories
Accessories
Description The refrigerant circuit consists of the following: Completely airtight scroll compressor with sight glass, temperature and current-sensing phase switch. Evaporator and condenser made of stainless steel. Low and high pressure switches. Drying filter, thermostatic expansion valve. Copper refrigerant tubes jointed together by brazing. Type R407C refrigerant is used.
• Available in 8 sizes with a rated heating capacity from 17 to 102 kW • Contains less than 3 kg chlorine-free refrigerant per circuit, R 407C • Has power and safety equipment for the compressors, stepping switch as well as the equipment for controlling arranged inside the casing • The heat pump is equipped with scroll compressors of Maneurop manufacture • Supplied CE-labelled, tested and documented as a ready-to-use unit
Design Compact design with casing that conforms to Corrosion Class C4. The structure of the unit is composed of extruded aluminium profiled frame members. • Covers and panels are of double-skin design made of aluminium-zinc plated sheet steel with ALC protected external surfaces
The heat transfer medium and heating medium circuits contain the following: Insulated copper tubes jointed together by brazing and drainage valves. The microprocessor equipment consists of the following: Main switch, protective motor switch, contactors, stepping switch, auxiliary relays and terminal connections for external interlocks and alarm/in-operation indicators. The following LEDs are located in the front panel of the unit: Alarm LEDs for the compressors and control switches with indicating LEDs.
Ordering key EVH-B -a a - Size
1610, 2410, 3110, 4020, 4820, 6220, 7830, 9330
• Intervening insulation is 25 mm thick as standard • Base beams with legs and adjustable feet.
PFP070601.01GB
Continuous product development may give rise to specification changes without notice.
Controls
Enviheater Pool is an environmentally compatible heat pump for indirect recovery of heat from the extract air for heating water.
Accessories
Unit
The control cubicle contains fully wired electrical equipment for operation, safety and control.
FlexoPool
Accessories
Technical Data Size
1610
2410
3110
4020
4820
6220
7830
9330
Recovered output (kW)
11.6
17.3
22.9
28.9
34.6
45.7
57.3
68.6
Compressor input (kW)
5.8
8.5
10.9
14.3
17.0
21.8
29.0
32.7
Specified heating capacity (kW)
17.4
25.8
33.8
43.2
51.6
67.5
86.3
101.3
Compressors (qty.)
1
1
1
2
2
2
3
3
Cooling circuits (qty.)
1
1
1
2
2
2
3
3
0.49
0.73
0.96
1.22
1.45
1.92
2.41
2.88
Internal pressure (kPa)
40
40
40
40
40
40
40
40
Connection diameter Ø (mm)
28
35
35
42
42
54
54
54
0.53
0.79
1.03
1.32
1.58
2.06
2.63
3.09
Internal pressure (kPa)
35
35
35
35
35
35
35
35
Connection diameter Ø (mm)
28
35
35
42
42
54
54
54
Refrigerant (kg/circuit 1)
1.6
2.6
3.0
1.6
2.6
3.0
1.6
3.0
HFC 407 C (kg/circuit 2)
–
–
–
2.6
2.6
3.0
3.0
3.0
HFC 407 C (kg/circuit 3)
–
–
–
–
–
–
3.0
3.0
20
25
35
50
50
63
80
100
A
A
A
B
B
B
C
C
212
248
255
310
346
360
482
525
HEAT TRANSFER MEDIUM * Water 0/6 °C (l/s)
HEATING MEDIUM Water 42/50 °C (l/s)
ELECTRICAL DATA Rec. fuse, 3 ×400V 50 Hz (A) CASING Type Weight (kg)
* 20% Ethylene glycol (not included in supply)
Configurations Type A
Type B
Enviheater
Enviheater
HC OUT HC IN
CC IN
CC IN CC OUT
Type C Enviheater
HC OUT HC IN
CC OUT
HC OUT CC IN
HC IN
CC OUT
10
PFP070601.01GB
Continuous product development may give rise to specification changes without notice.
FlexoPool
Accessories
Pipe Components (Code EADT-01) Overview
The EADT-01 pipe components consist of unmounted circulation pump and complete pressure expansion vessel with equipment for installation in the refrigerant pipework between the heat pump and the energy recovery coil located in the EAD exhaust air section.
Unit
• Wet circulation pump with pipe connections, 1-phase, 230 V equipped with thermostatic contacts in motor winding and three-speed motor (safety isolation switch is not included). • Condensation-insulated pump casing.
Accessories
• Pressure expansion vessel (12 litre / 0.05 MPa pre-pressure) with venting and drain valve, safety valve (0.15 M Pa opening pressure), manometer and headers for 20 mm o.d. connection.
Ordering key EADT-01 -e e - Size
100, 150, 190, 240, 300, 360, 480, 600
Size, EVH-B
1610
2410
3110
4020
4820
6220
7830
9330
Overall length, pump (mm)
180
180
280
280
280
280
280
280
Pipe connection dia. (mm)
32
32
54
54
54
54
54
54
Weight (kg)
7
7
18
18
18
18
18
18
1.95
1.95
3
3
3
3
3
3
Max. rated current (A)
Controls
Circulation Pump, Technical Data
11
PFP070601.01GB
Continuous product development may give rise to specification changes without notice.
FlexoPool
Control Equipment Control equipment with a type Siemens Desigo PX microprocessor automation station is available for controlling the FlexoPool air handling unit. The unit is complete, pre-programmed and functionally tested and has integrated control equipment with project-customised schedules, ready to be commissioned. The control equipment optimises the control of the humidity and temperature and is simple to monitor. All information is displayed in plain text in a handheld terminal.
Control Equipment
When the unit is operating in the Daytime – Recirculated air or Night-time – Recirculated air modes, the extract air fan is stopped. To ensure a safe start, the supply air fan is first started up with full recirculated air intermixture. After a preset time period, the outdoor/exhaust air damper opens and the extract air fan starts. The circulation pumps are demand-controlled and exercised. The circulation pump for heating operates continuously whenever the outdoor temperature is low. The damper actuator closes, de-energised, when the unit is shut down.
Daytime operation When the unit is operating during the day, the Daytime – Outdoor air operating mode has priority; the supply air and extract air fans are running. The amount of recirculated air mixed into the supply air is determined on the basis of the dehumidification load. The min. outdoor air volume is adjustable in the computer automation station.
Desigo PX is Siemen’s standard microprocessor user station for building automation and is ready for integration with other PX automation stations via BACnet/LON. Communication units can be offered for communication with other systems and web solutions.
Controls The air handling unit is operated by means of an ”0 - AUTO” switch on the control cubicle. The air handling unit is controlled via time scheduling in a computer automation station for continuous operation in the ”Daytime operation” or the ”Nighttime operation” mode. The controls are available with an external timer or a pushbutton for prolonged daytime operation.
If the operator sets the min. outdoor air volume to 0%, the unit can, if required, switch over to the Daytime – Recirculated air mode to prevent desiccation of the premises. When the humidity has risen above the preset value, the unit switches back to the Daytime – Outdoor air mode.
Night-time operation When the unit is operating at night, the Night-time – Recirculated air operating mode has priority. The supply air fan is running and the extract air fan is switched out. The outdoor air/exhaust air dampers are closed and the recirculation damper is open. If the humidity rises above the preset value, the unit switches over to the Night-time– Outdoor air mode for dehumidifying the premises. The volume of recirculated air mixed into the supply air is determined by the humidification load. The unit switches back to the Night-time – Recirculated air mode when the humidity drops.
In response to the dehumidification load, the FlexiPool unit is controlled to four different operating modes: Daytime – Outdoor air or Daytime – Recirculated air for daytime operation as well as Night-time – Recirculated air or Night-time – Outdoor air for night-time operation.
12
PFP070601.01GB
Continuous product development may give rise to specification changes without notice.
Flow control (option)
In response to a decrease in temperature measured by the temperature sensor in the extract air, the computer automation station increases the flow of liquid in the heat recovery circuit and then opens the control valve for heating in sequence to reach the preset setpoint. On rising temperature, the reverse sequence takes place. The setpoint can be altered to compensate for the outdoor air temperature.
On selecting speed-controlled fans, the controls can be supplemented with a feature for controlling the airflow generated by the supply air and extract air fans.Control of heat pump (option)
The supply air temperature can be limited to min. and max. settings.
Humidity control In response to a decrease in humidity measured by the moisture sensor in the extract air, the computer automation station opens the recirculated air damper and closes the outdoor air/exhaust air damper to reach the preset setpoint. On increasing humidity, the control is reversed. The setpoint can be altered to compensate for the outdoor temperature.
Internal stepping switches can be utilized for controlling the operation of the compressors in the heat pump in order to keep the heat transfer medium temperature at the setpoint preset in the computer automation station. The system does not permit the exhaust air and the heat transfer medium temperatures to drop below the preset settings. To prevent freezing, the compressors are controlled for less heat recovery. The heat pump operates only in the Daytime – Outdoor air mode or the Night-time – Outdoor air mode, when the extract air fan is switched in.
The humidity in the supply air can be limited to min. and max. settings.
Controls
Frost formation on heat exchanger surfaces Frost forming on the air heater is prevented by not permitting the exhaust air temperature to drop lower than the preset value. On falling temperature, the controls reduce the flow of liquid for a decrease in heat recovery.
Anti-frost monitor When the water temperature by the anti-frost monitor sensor is low, the controller opens the heating coil control valve to let in heating medium. If the water temperature continues to drop and there is danger of freezing, the unit is stopped and the outdoor air/ exhaust air damper closes. The heating coil is kept warm while the unit is stopped.
Protective functions Other safety equipment such as smoke/fire and supervision equipment or emergency stop can be connected to the control equipment for stopping the unit and/or initiating alarms.
13
PFP070601.01GB
Continuous product development may give rise to specification changes without notice.
Unit
Temperature control
Overview
Control Equipment
Accessories
FlexoPool
FlexoPool
Control Equipment
Basic Flow Chart FlexoPool
GT3
ST1
GF1
GT8
GM1
GP6
GT1
TF
INDOOR SWIMMING POOL BUILDING
EXP ST3 FO-P3 ST2 GT9:3
GF2
P3
GT4
GM2/GT2
FF
GT9:2
P1
P2
SV1
VP1
Enviheater Pool
LP
C
HP GT9:1 P
SV
TO OTHER ITEMS THAT USE HEAT
PRIMARY HEAT P GT
EXAMPLE: SUPPLYING HEAT
SV GT
RETURN PIPE FROM POOL HEAT EXCHANGER FOR POOL WATER
SYMBOLS USED TF
SUPPLY AIR FAN
GT1
TEMP. SENSOR, SUPPLY AIR
VP1
HEAT PUMP
FF
EXTRACT AIR FAN
GT3
TEMP. SENSOR, OUTDOOR AIR
P2
CIRC. PUMP, VP1, HEAT TRANSP. MEDIUM
P1
CIRCULATION PUMP, HEATING
GT4
TEMP. SENSOR, EXHAUST AIR
GT9:1 TEMP. SENSOR, VP1 HEATING MEDIUM
P3
CIRCULATION PUMP, RECOVERY
GT8
TEMP. SENSOR, ANTI-FROST MON. GT9:2 TEMP. SENSOR, VP1 HEAT TRANSP. MED.
GM1 GM2/GT2 GF1
MOISTURE SENSOR, SUPPLY AIR MOISTURE/TEMP. SENSOR, EXTRACT AIR FLOW SENSOR, SA FAN
GF2
FLOW SENSOR, EA FAN
GP6
STRAP-ON MANOMETER
FO-P3 FREQUENCY INVERTER SV1
VALVE ACTUATOR, HEATING
ST1
VALVE ACTUATOR, OUTDOOR AIR
ST2
VALVE ACTUATOR, EXHAUST AIR
ST3
VALVE ACTUATOR, RECIRC. AIR
GT9:3 TEMP. SENSOR, VP1 EXHAUST AIR P
CIRCULATION PUMP
SV
CONTROL VALVE, POOL
SV
CONTROL VALVE, PRIMARY HEAT
GT
TEMP. SENSOR, RETURN PIPE, POOL
GT
TEMP. SENSOR, PRIMARY HEAT
14
PFP070601.01GB
Continuous product development may give rise to specification changes without notice.
IV Produkt’s Air handling Units IV Produkt’s air handling units are flexible which means that they are well-suited for a large number of different needs both in public and private facilities. You can easily combine parts or find a total solution in our range of products. An overview of IV Produkt’s range of air handling units.
Envistar ®
Flexomix ®
StarCooler ®
FlexoPool
0,1
0,2
0,3
0,4
®
2
0,5 0,6 0,7 0,8 0,91,0
3
4
5
6
7 8 9 10
20
Airflow m³/s
500 Airflow m³/h
1000
Envistar is a total air handling solution and can be supplied as a one-piece unit or as modules. Available in 3 different models: Top, Compact and Flex, which in turn are available in various sizes. The Siemens Saphir controller featuring a variety of functions and several different communication possibilities is available for the Envistar. Flexomix is a modular air handling unit that enables you to decide the delivery configuration. Available in 19 sizes and can be operated with 4 different types of energy recovery.
5000
10000
20000
StarCooler is a compact cooling unit and is available as an option for the units in our Envistar and Flexomix series. Available with or without cooling energy recovery. Requires no installation of equipment outdoors and is CE labelled. This is an economical and reliable solution and is simple to install.
50000
30
100000
40
150000
IV Produkt Designer is our product selection software that assists you in selecting air handling units. Euroventcertifiering, our products are tested by Eurovent in accordance with the provisions of EN 1886 and EN 13053 Standard. www.eurovent-certification.com
FlexoPool is a complete dehumidification unit for indoor pools and indoor swimming baths. More information is available at
www.ivprodukt.se
IV Produkt AB, P.O. 3103, SE-350 43 VÄXJÖ, SWEDEN Phone: +46-470 75 88 00 • Fax: +46-470 75 88 76
[email protected] • www.ivprodukt.se
PFP070601.01GB
Air handling with the focus on LCC
