Danfoss WT-C Installation Guide

Installation Guide
WT-C 500
WT-C 750
© Danfoss A/S (Dept./Init.), 2017-10
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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
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© Danfoss A/S (Dept./Init.), 2017-10
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 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
Corrosion protection, coil
500
750
copper
copper
Storage volume V
litre
486
737
Volume, coil
litre
4x3,5
6x3,5
6x12
Length, coil
m
4x12
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
1758
1831
Net weight
kg
161
191
Immersion heater max. output
kW
9
2x9
Standing loss S
W
85,6
126,8
C
C
Energy efficiency class
© Danfoss A/S (Dept./Init.), 2017-10
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Electrical Installation
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•
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.
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).
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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 temperatures according to country specific regulations. 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.
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•
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.
Disassembling the product
When disassembling the product, applicable laws and regulations must be observed. Contact your installer for more information.
© Danfoss A/S (Dept./Init.), 2017-10
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1
1758
1710
Connection WT-C 500
1 Expansion/Venting, DN25 ext.
2
1492
2 Connections (8x), DN50 int.
5
3 Temperature sensor conn. DN20 int.
4 Immersion heater conn. DN50 int.
3
1217
5 Hot water coil (2x12m), Ø22
4
6 Preheat coil/Hot water coil (2x12m), Ø22
5
1042
942
892
842
792
742
2
3
2
6
3
467
Technical data
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WT-C 500
Storage volume V
Test pressure
4,3 bar
Working pressure
3 bar
Rated temperature
100 °C
Weight
161 kg
Standing loss S
85,6 W
Energy efficiency class
2
486 litres
192
0
C
695
Dimensions
WT-C 500
1758
821 x 695
Required ceiling height for tilting: min. 1850mm
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821
Dimensions (mm)
696
Height (mm)
© Danfoss A/S (Dept./Init.), 2017-10
1
1831
1785
Connection WT-C 750
1 Expansion/Venting, DN25 ext.
2 Connections (8x), DN50 int.
2
1515
3 Temperature sensor conn. DN20 int.
5
4 Immersion heater conn. DN50 int.
5 Hot water coil (3x12m), Ø22
3
1240
4
6 Preheat coil/Hot water coil (3x12m), Ø22
1065
5
965
915
865
815
765
2
3
2
6
3
490
Technical data
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WT-C 750
Storage volume V
Test pressure
737 litres
4,3 bar
Working pressure
3 bar
Rated temperature
100 °C
Weight
191 kg
Standing loss S
126,8 W
Energy efficiency class
2
215
0
Ø780
C
Ø960
Dimensions
WT-C 750
Height (mm)
1831
Diameter (ømm)
960
Required ceiling height for tilting: min. 2085mm
1073
© Danfoss A/S (Dept./Init.), 2017-10
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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.
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