Danfoss WT-C 500 Bedienungsanleitung
Installation Guide
WT-C 500
WT-C 750
© Danfoss A/S (Dept./Init.), 2014-05 VIILD102 1
2 VIILD102 © Danfoss A/S (Dept./Init.), 2014-05
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
© Danfoss A/S (Dept./Init.), 2014-05 VIILD102 3
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 lled with water. Connections not in use must be plugged appropriately. During water lling, con-
densed water may emerge on the outside of the tank. This will result in water underneath the tank, on the oor. This will cease
when the tank is heated. There must be a oor drain in the same room.
All connections (including those not used) must be insulated to minimize idle losses.
Commissioning
Start by lling the tank, then pressurize it. Continue to ll the radiator system (the enclosed water). The working pressure may
not exceed 3 bar (gauge), a safety valve with a releasing pressure of 3 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.).
Technical data
WT-C 500 750
Corrosion protection, coil copper copper
Volume, hot water heater litre 500 750
Volume, coil litre 4x3,5 6x3,5
Length, coil m 4x12 6x12
Max. pressure, hot water heater bar/MPa 3 3
Max. pressure, coil bar/MPa 10 10
Max. immersion heater length mm 670 850
Height (incl. feet) mm 1730 1830
Net weight kg 142 157
Immersion heater max. output kW 9 2x9
4 VIILD102 © Danfoss A/S (Dept./Init.), 2014-05
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-o 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 overow pipe from the safety valve must not be able to be shut-o and must run visibly above the oor drain.
Filling
Fill the water heater as follows:
1. Open a hot water tap in the system.
2. Open the shut-o valve on the incoming cold water. This valve should then be fully open during operation.
3. The hot water tap can only be shut o when the water heater is lled, which is when only water
comes out of the tap (initially an air-water mixture comes out of the tap).
© Danfoss A/S (Dept./Init.), 2014-05 VIILD102 5
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 overow 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 satisfactory, it must be replaced.
• If there is a risk of freezing, the water heater must be drained.
• In the event of malfunctions - contact the installer.
6 VIILD102 © Danfoss A/S (Dept./Init.), 2014-05
1730
1666
1480
1205
1030
930
830
730
455
180
0
3
3
3
2
2
2
2
760
696
5
5
6
6
4
Dimensions
Technical data
WT-C 500
Volume hot water accumulator 500 litres
Test pressure 4,3 bar
Working pressure 3 bar
Rated temperature 100 °C
Weight 142 kg
Required ceiling height for tilting: min. 1840mm
WT-C 500
Height (mm) 1730
Dimensions (mm) 696 x 760
Connection WT-C 500
1 Expansion/Venting, DN25 ext.
2 Connections (8x), DN50 int.
3 Temperature sensor conn. DN20 int.
4 Immersion heater conn. DN50 int.
5 Hot water coil (2x12m), Ø22
6 Preheat coil/Hot water coil (2x12m), Ø22
1
© Danfoss A/S (Dept./Init.), 2014-05 VIILD102 7
Ø965
1830
1515
965
765
490
215
0
2
2
2
2
4
5
5
6
6
3
3
3
1065
1240
815
865
915
Dimensions
Technical data
WT-C 750
Volume hot water accumulator 750 litres
Test pressure 4,3 bar
Working pressure 3 bar
Rated temperature 100 °C
Weight 157 kg
Required ceiling height for tilting: min. 2085mm
WT-C 750
Height (mm) 1830
Diameter (ømm) 965
Connection WT-C 750
1 Expansion/Venting, DN25 ext.
2 Connections (8x), DN50 int.
3 Temperature sensor conn. DN20 int.
4 Immersion heater conn. DN50 int.
5 Hot water coil (3x12m), Ø22
6 Preheat coil/Hot water coil (3x12m), Ø22
1
8 VIILD102 © Danfoss A/S (Dept./Init.), 2014-05
Danfoss Heat Pumps
Box 950
SE-671 29 ARVIKA
Phone +46 570 81300
E-mail: dhpinfo@danfoss.com
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 specications 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.
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