Danfoss WT-T 300 500 Installation Guide | Manualzz
Installation Guide
WT-T 300
WT-T 500
© Danfoss A/S (Dept./Init.), 2014-05
VIILC102
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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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VIILC102
© 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.
Filling
Fill the water heater as follows:
1.
2.
3.
Open a hot water tap in the system.
Open the shut-off valve on the incoming cold water. This valve should then be fully open during operation.
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.
Danfoss A/S (Dept./Init.), 2014-05
VIILC102
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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.
Technical data
WT-T
Corrosion protection
300
500
stainless
stainless
Volume, hot water heater
litre
300
500
Volume, coil
litre
18
24
Length, coil
m
30
39
Heating surface, coil
m²
2,9
3,7
Max. pressure, hot water heater
bar/MPa
10
10
Max. pressure, coil
bar/MPa
10
10
Max. immersion heater length
mm
460
570
Height (incl. feet)
mm
1780
1850
Net weight
kg
63
88
Immersion heater, max. output
kW
6
9
Pressure drop diagram
120
110
100
Pressure drop (KPa)
90
80
70
60
50
40
30
20
10
0
0
0,1
0,2
0,3
0,4
0,5
0,6
0,7
0,8
0,9
1
1,1
1,2
1,3
1,4
1,5
1,6
Coilflow (l/sec)
WT-T 300
4
WT-T 500
VIILC102
© Danfoss A/S (Dept./Init.), 2014-05
Connection WT-T 300
1780
1 Connections (2x), DN50 int.
4
2 Circulation, DN25 int.
3 Temperature sensor conn. DN15 int.
4 Temperature sensor conn. DN15 int.
( located on the "backside")
1537
1505
1480
1
5
1287
1252
1152
5 Coil supply, DN25 int.
6 Coil return, DN25 int.
2
7 Immersion heater conn. DN50 int.
3
7
722
3
Technical data
WT-T 300
Volume hot water accumulator
300 litres
Test pressure
14,3 bar
Working pressure
1
284
10 bar
Rated temperature
95 °C
Weight
63 kg
6
47
0
Dimensions
4
WT-T 300
1780
Diameter (ømm)
603
ø603
Height (mm)
Required ceiling height for tilting: min. 1845mm
Danfoss A/S (Dept./Init.), 2014-05
VIILC102
5
1850
Connection WT-T 500
4
1 Connections (2x), DN50 int.
2 Circulation, DN25 int.
3 Temperature sensor conn. DN15 int.
4 Temperature sensor conn. DN15 int.
( located on the "backside")
5 Coil supply, DN25 int.
6 Coil return, DN25 int.
1517
1497
1487
1
1317
2
1197
1182
7
5
7 Immersion heater conn. DN50 int.
3
687
1
Technical data
324
WT-T 500
Volume hot water accumulator
500 litres
Test pressure
14,3 bar
Working pressure
10 bar
Rated temperature
95 °C
Weight
88 kg
6
52
0
4
Dimensions
Height (mm)
1850
Diameter (ømm)
734
ø734
WT-T 500
Required ceiling height for tilting: min. 1960mm
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VIILC102
© Danfoss A/S (Dept./Init.), 2014-05
Danfoss A/S (Dept./Init.), 2014-05
VIILC102
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.
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VIILC102
© Danfoss A/S (Dept./Init.), 2014-05
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