Thermia WT-C Manuel utilisateur
Thermia AB 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 Thermia AB
Table of Contents
1 Getting started .................................................................. 4
1.1 Getting started ............................................................... 4
2Model specifications .............................................................. 5
2.1 WT-C ..................................................................... 5
2.2 WT-C FC (Front Connection) ...................................................... 8
Installation Guide WT-C Accumulator tanks
Thermia AB VIBND502 3
1 Getting started
1.1 Getting started
Installation
The accumulator tank should stand on a solid surface and be leveled with assistance from the setscrews underneath the tank (not fitted
on all models). The tank models that come without setscrews can be leveled with assistance of a shim. This must be done before the
tank is connected to the pipes and filled with water. See picture below for adjusting the setscrews. 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 under-
neath the tank, on the floor. This will cease when the tank is heated. There must be a floor drain in the same room.
To temporarily remove the insulation, for instance if there is a narrow passage to fit the tank through, see the below instructions (not
applicable to all models). All the screws holding the insulation in place is of Torx 10 type.
1
2
3
2
1
1. Start by removing the screws that holds the locks in
place. At the top and bottom.
2. Flip the locks.
3. Remove the screws all the way down. The side is also fit-
ted with a velcro on the inside.
4. Put the insulation back in the reversed order.
Adjust the setscrews according to the measures below.
1 2
3
1. Foot length is 14mm.
2. Maximum length between floor and tank is 39mm, in-
cluding foot.
3. Maximum screw length is 25mm, excluding foot.
Commissioning
Start by filling the tank, then pressurize it. Continue to fill the radiator system (the enclosed water). The working pressure may not ex-
ceed the test pressure (4,3 or 8,6 bars, gauge). A safety valve with releasing pressure of that of the test pressure 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 annu-
ally all connections for eventual leakage (also peripheral installations, i.e. a heat pump, etc).
Electric installation
▪The electrical installation must be performed by an authorised installer and follow applicable norms and regulations.
▪When selecting electrical equipment, it must be selected with approved materials and enclosure class.
Disassembling the product
When disassembling the product, applicable laws and regulations must be observed. Contact your installer for more information.
Installation Guide WT-C Accumulator tanks
VIBND502 Thermia AB
4
2 Model specifications
2.1 WT-C
Technical data
WT-C Unit 500 750
Corrosion protection, coil - copper copper
Storage volume V litres 473 721
Volume, coil litres 4x3,5 6x3,5
Length, coil litres 4x12 6x12
Max. pressure, hot water heater bar 3
Max. pressure, coil bar 10
Max. immersion heater length mm 670 850
Net weight kg 161 191
Immersion heater max. output kW 9 2x9
Standing loss S W 101 127
Energy efficiency class - C
Dimensions
WT-V Unit 500 750
Height (including feet) mm 1758 1831
Dimensions mm 821 x 756 Ø960
Installation Guide WT-C Accumulator tanks
Thermia AB VIBND502 5
2.1.1 WT-C 500
Connections
1758
1710
1492
1217
1042
942
892
842
792
742
467
192
0
3
2
5
6
4
1
1 Expansion/venting (DN25)
2 Connections (DN50, x8)
3 Temperature sensor (DN20, x3)
4 Immersion heater (DN50)
5 Tap water coil (2x12m, Ø22mm)
6 Preheat coil/tap water (2x12m, Ø22mm)
Technical data
Storage volume V 473 litres
Test pressure 4,3 bar
Working pressure 3 bar
Rated temperature 100 °C
Weight 161 kg
Standing loss S 101 W
Energy efficiency class C
Dimensions
756
696
821
Height (mm) 1758
Diameter (mm) 821 x 756
Required ceiling height for tilting: 1850 mm
Installation Guide WT-C Accumulator tanks
VIBND502 Thermia AB
6
2.1.2 WT-C 750
Connections
1831
1784
1515
1240
1065
1
2
4
3
5
6
Ø960
Ø780
0
965
915
865
815
765
490
215
1 Expansion/Venting (DN25)
2 Heat source (DN50, x8)
3 Tap water coil (3x12m, Ø22)
4 Temperature sensor (DN20, x3)
5 Immersion heater (DN50)
6 Preheat coil/Tap water(3x12m, Ø22)
Technical data
Storage volume V 721 litres
Test pressure 4,3 bar
Working pressure 3 bar
Rated temperature 100 °C
Weight 191 kg
Standing loss S 127 W
Energy efficiency class C
Dimensions
90
100
100
Height (mm) 1831
Diameter (mm) Ø960
Required ceiling height for tilting: 2085 mm
Installation Guide WT-C Accumulator tanks
Thermia AB VIBND502 7
2.2 WT-C FC (Front Connection)
Technical data
WT-C FC Unit 500 FC (3Bar) 500 FC (6Bar) 750 FC (3Bar) 750 FC (6Bar) 1000 FC (3Bar) 1000 FC (6Bar)
Total volume litres 477 503 721 676 971 907
Storage volume V litres 466 492 704,5 659,5 949 885
Total coil volume litres 11 11 16,5 16,5 22 22
Coil length m 4x12 4x12 6x12 6x12 8x12 8x12
Coil surface (per coil) m23
Working pressure Bar 3 6 3 6 3 6
Test pressure Bar 4,3 8,6 4,3 8,6 4,3 8,6
Max pressure, coil Bar 10
Max. temperature °C 100
Max. immersion heater
length mm 700 710 840 810 950 910
Weight kg 142 164 187 208 270 262
Standing loss S W 104 104 127 127 130 135
Energy efficiency class - C
Height mm 1765 1788 1830 1837 1927 1900
Dimensions mm Ø840 Ø840 Ø960 Ø950 Ø1090 Ø1050
Dimensions without
insulation mm Ø640 Ø650 Ø780 Ø750 Ø890 Ø850
Depth, including coil
connections mm 932 939 1065 1049 1186 1149
Installation Guide WT-C Accumulator tanks
VIBND502 Thermia AB
8
2.2.1 WT-C 500 FC (3 bar)
Connections
1765
1738
1505
1400
1290
1005
905
525
410
285
205
175
1
2
5
4
3
ø840
ø640
0
865
805
8
6
7
1 Venting (DN32)
2 Heat source (DN50, x4)
3 Tap water coil (2x12m, Ø22mm)
4 Temperature sensor (DN20, x2)
5 Heat source (DN32)
6 Heat source/Immersion heater (DN50)
7 Preheat coil/Tap water (2x12m, Ø22mm)
8 Drain tap/Temperature sensor (DN20)
Technical data
Total volume 477 litres
Storage volume V 466 litres
Total coil volume 11 litres
Coil surface (per coil) 3 m2
Working pressure 3 bar
Test pressure 4,3 bar
Max. pressure, coil 10 bar
Max. temperature 100 °C
Max. immersion heater length 700 mm
Weight 142 kg
Standing loss S 104 W
Energy efficiency class C
Dimensions (mm)
Ø22
100
100
Height 1765
Diameter Ø840
Diameter without insulation Ø640
Depth, including coil connections 932
Required ceiling height for tilting: 1900 mm
Installation Guide WT-C Accumulator tanks
Thermia AB VIBND502 9
2.2.2 WT-C 500 FC (6 bar)
Connections
1
2
6
4
3
7
5
ø840
ø650
8
1 Venting (DN32)
2 Heat source (DN50, x4)
3 Tap water coil (2x12m, Ø22mm)
4 Temperature sensor (DN20, x2)
5 Heat source (DN32)
6 Heat source/Immersion heater (DN50)
7 Preheat coil/Tap water (2x12m, Ø22mm)
8 Drain tap/Temperature sensor (DN20)
Technical data
Total volume 503 litres
Storage volume V 492 litres
Total coil volume 11 litres
Coil surface (per coil) 3 m2
Working pressure 6 bar
Test pressure 8,6 bar
Max. pressure, coil 10 bar
Max. temperature 100 °C
Max. immersion heater length 710 mm
Weight 164 kg
Standing loss S 104 W
Energy efficiency class C
Dimensions (mm)
Ø22
100
100
Height 1788
Diameter Ø840
Diameter without insulation Ø650
Depth, including coil connections 939
Required ceiling height for tilting: 1900 mm
Installation Guide WT-C Accumulator tanks
VIBND502 Thermia AB
10
Ce manuel convient aux modèles suivants
7
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