Connections - Technibel TWN Series Installation Instruction

2.4 - INSTALLATION
• Secure the units to either a wall or ceiling using appropriate mounting fixtures.
• The distances between the 4 existing lights (A) are indicted below.
A
B
2.5 - WEIGHT OF FAN COIL UNITS (in kg)

3 - CONNECTIONS

3.1 - HYDRAULIC CONNECTION
• The units come with the hydraulic connections located on the left-hand side.
• Connections may be changed on site. Refer to paragraph 2.1 for instructions.
• The water inlet is always at the lowest point on the exchanger.
• To connect the additional battery (4-tube version), refer to Technical Instructions 10 12 172.
3.1.1 - HOLE LOCATION
A
Models Cv, CH (vertical) and NC (vertical) models
H
J
F
G
3.1.2 - INSULATION OF PIPES
• The insulation concerns the water return and inlet pipes.
• Use polyethylene sheathing at least 9 mm thick.
• After connection and leak inspection, insulate the unit's valves, tubes and
connections.
NOTE: This operation must be done carefully to avoid any risk of
condensation
3.1.3 - PURGING THE FAN COIL UNIT'S WATER CIRCUIT
• This is done by unscrewing a drain plug located on the exchanger collecting receptacle.
• Access: on the side of the unit.
• Tools: standard tip screwdriver or tubular hexagon box wrench.
CAUTION: Be careful not to tighten the purge excessively as the screw head may break.
A: mounting holes.
Models CH (horizontal)
NC (horizontal)
H
K
J
D
E
5
A
B
Models
02 03
NC 15 19
Cv 21 25
CH 21 27
02
03
A 51 51
B 198 198
C 226 226
D 263 263
E 458 458
F 163 163
G 198 198
H 1/2" 1/2"
J 16 16
K 198 198
Water supply and return pipes
Sizes B (mm)
02 498
03 708
04 918
05 918
06 1,128
08 1,128
11 1,338
Sizes
04 05 06 08 11
23 24 32 33 39
31 32 42 43 51
33 34 44 45 53
Sizes
04 - 05 06 - 08 11
51 48 48
198 220 220
226 251 251
263 259 259
458 497 497
163 185 185
198 220 220
1/2" 3/4" 3/4"
16 16 16
198 208 208
Insulation
GB