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Danfoss WT-S 500 1000 Installation Guide
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Danfoss WT-S 500 1000
The Danfoss WT-S 500 1000 is a hot water heater that can be used to provide hot water for your home or business. It is a stainless steel tank with a capacity of either 500 or 1000 liters. The tank is insulated to minimize heat loss, and it is equipped with a safety valve to prevent over pressurization.
The WT-S 500 1000 is easy to install and maintain. It can be connected to your existing plumbing system, and it comes with a variety of features to make it easy to use. These features include:
- A temperature sensor that allows you to monitor the temperature of the water in the tank
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Installation Guide
WT-S 500
WT-S 1000
© Danfoss A/S (Dept./Init.), 2014-05 VIILB102 1
Danfoss A/S is not liable or bound by warranty if these instructions are not adhered to during installation or service.
The English language is used for the original instructions.Other languages are a translation of the original instructions.
(Directive 2006/42/EC)
© Copyright Danfoss A/S
2 VIILB102 © Danfoss A/S (Dept./Init.), 2014-05
Installation
The hot water heater should stand on a solid surface and be levelled with assistance from the setscrews underneath the tank. The tank models that come without setscrews can be levelled with assistance of a shim. This must be done before the tank is connected to the pipes and filled with water. Connections not in use must be plugged appropriately. During water filling, condensed water may emerge on the outside of the tank. This will result in water underneath the tank, on the floor.
This will cease when the tank is heated. There must be a floor drain in the same room.
All connections (including those not used) must be insulated to minimize idle losses.
Commissioning
Start by filling the tank, then pressurize it. Continue to fill the radiator system (the enclosed water). The working pressure may not exceed 10 bar (gauge), a safety valve with a releasing pressure of 10 bar must always be installed.
Maintenance
Check the safety valve annually by manually opening and closing the valve handle and making sure that water is released.
Check annually all connections for eventual leakage (also peripheral installations, i.e. a heat pump, etc).
Electrical Installation
• The electrical installation must be performed by an authorized installer and follow applicable norms and regulations.
• When selecting electrical equipment, it must be selected with approved materials and enclosure class.
Pipe installation
The water heater must be supplied with:
• A safety valve
• A shut-off valve
• A drain valve
• A non-return valve
• A mixing valve
• A pressure gauge
• A vacuum valve as per applicable standards.
The water heater must be supplied with the prescribed safety equipment according to applicable local and national regulations. The overflow pipe from the safety valve must not be able to be shut-off and must run visibly above the floor drain.
© Danfoss A/S (Dept./Init.), 2014-05 VIILB102 3
Filling
Fill the water heater as follows
1. Open a hot water tap in the system.
2. Open the shut-off valve on the incoming cold water. This valve should then be fully open during operation.
3. The hot water tap can only be shut off when the water heater is filled, which is when only water
comes out of the tap (initially an air-water mixture comes out of the tap).
Water temperature
Outgoing water temperature must not exceed applicable local and national regulations. At higher heater temperatures a mixer valve can be installed to restrict the outgoing hot water temperature to a limit of 60 ° C.
The lower the temperature in the system, the less heat loss from lines and valves.
Safety valve
The safety valve must be inspected regularly.
Ease the safety valve lever slightly to release some water through the overflow pipe. This must be carried out at least 4 times a year. It is quite normal for the safety valve to let out small amounts of water when the water tank is being charged.
• If the valve does not work satisfactorily, it must be replaced.
• If there is a risk of freezing the water heat must be drained.
• In the event of malfunctions - contact the installer.
Technical data
WT-S
Corrosion protection
Volume, hot water heater
Max. pressure, hot water heater
Max. immersion heater length
Height (excl. feet)
Net weight
Immersion heater, max. output litre bar/MPa mm mm kg kW
500 1000 stainless stainless
500 1000
10 10
640
1850
63
9
850
2295
95
2x9
4 VIILB102 © Danfoss A/S (Dept./Init.), 2014-05
Connection WT-S 500
1 Connections (4x), DN50 int.
2 Circulation, DN25 int.
3 Temperature sensor conn. DN15 int.
4 Immersion heater conn. DN50 int. (2x)
(Located on the ”backside”)
1850
1517
1276
1002
Technical data
WT-S 500
Volume hot water accumulator
Test pressure
Working pressure
Rated temperature
Weight
500 litres
14,3 bar
10 bar
95 °C
63 kg
Dimensions
WT-S 500
Height (mm)
Dimension (ømm)
1850
734
Required ceiling height for tilting: min. 1960mm
432
322
312
0
5
6
5
1
2
3
6
4
1
Ø 734
© Danfoss A/S (Dept./Init.), 2014-05 VIILB102 5
6
Connection WT-S 1000
1 Connections (4x), DN50 int.
2 Circulation, DN25 int.
3 Temperature sensor conn. DN15 int.
4 Immersion heater conn. DN50 int. (2x)
(Located on the ”backside”)
Technical data
WT-S 1000
Volume hot water accumulator
Test pressure
Working pressure
Rated temperature
Weight
1000 litres
14,3 bar
10 bar
95 °C
95kg
Dimensions
WT-S 1000
Height (mm)
Dimension (ømm)
2295
990
Required ceiling height for tilting: min. 2500mm
458
384
338
0
2295
1928
1538
1258
Ø 990
1
1
2
3
4
1
VIILB102 © Danfoss A/S (Dept./Init.), 2014-05
WT-S 1000
We recommend that the insulation should be removed before moving the hot water tank.
This is done to minimize the risk of damaging the insulation.
1
2 2
2
2
© Danfoss A/S (Dept./Init.), 2014-05 VIILB102 7
Danfoss Heat Pumps
Box 950
SE-671 29 ARVIKA
Phone +46 570 81300
E-mail: [email protected]
Internet: www.heating.danfoss.com, www.thermia.com
Danfoss assumes no responsibility whatsoever for any errors occurring in catalogues, brochures or other printed material. Danfoss reserves the right to make changes to (the design of) its products with no prior warning. The same applies to products already on order provided that the previously agreed specifications remain unchanged. All trademarks in this material are the property of the respective company. Danfoss and the Danfoss logotype are trademarks which belong to Danfoss A/S. All rights reserved.
8 VIILB102 © Danfoss A/S (Dept./Init.), 2014-05
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