Digit n ° Codification |
Value Description |
Pack . |
Compatibility |
||
1-2 |
42 |
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3-4 |
NH
NL
|
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2
3
|
Chassis Size 2
Chassis Size 3
|
Unit size availability ( Digit n ° 5-6-7 ): |
|||
5 |
4
5
|
Chassis Size 4
Chassis Size 5
|
Yes |
2-pipe :
NL / NH 225 ; 235 ; 229 ; 239 ; 279
|
4-pipe :
NL / NH 235 ; 239 ; 279
|
6
7
|
Chassis Size 6
Chassis Size 7
|
NL / NH 325 ; 335 ; 329 ; 339 |
NL / NH 335 ; 339 |
||
2 |
Standard efficiency |
NL / NH 425 ; 435 ; 429 ; 439 |
NL / NH 435 ; 439 |
||
3
4
|
Medium efficiency
High efficiency
|
Yes |
NL / NH 525 ; 535 ; 529 ; 539 |
NL / NH 535 ; 545 ; 539 ; 549 |
|
7
5
9
|
Extra High efficiency
AC multispeed motor
EC low consumption motor
|
Yes |
NH 635 ; 645 ; 639 ; 649
NH 735 ; 745 ; 739 ; 749
|
NH 645 ; 649
NH 735 ; 745 ; 739 ; 749
|
|
F |
2 pipes coil Left Hand |
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8 |
G
C
|
2 pipes coil Right Hand
4 pipes coil Left Hand
|
Yes |
||
D |
4 pipes coil Right Hand |
||||
- |
Bare wires |
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E |
Electrical Box |
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K |
NTC |
Yes |
Valves and actuators must be selected with NTC |
||
L |
WTC LON |
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M |
WTC BACNET |
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- |
Without valve |
Yes |
G |
2-way valve |
Yes |
H |
4-way valve |
Yes |
L |
2-way balancing valve |
No |
T |
2-way balancing valve and pressure points |
No |
- |
Without electric heater |
|
E |
500W electric heater |
|
F |
800W electric heater |
|
G |
1000W electric heater |
|
H
J
|
1500W electric heater
1600W electric heater
|
Yes |
K |
2000W electric heater |
|
L |
2400W electric heater |
|
M |
3000W electric heater |
|
N |
3200W electric heater |
|
- |
Without actuator |
Yes |
A |
230V ON / OFF actuator |
Yes |
C |
230V floating actuator ( 3 points ) |
Yes |
B |
24V ON / OFF actuator |
Yes |
D |
24V floating actuator ( 3 points ) |
No |
E |
24V 0-10V modulating actuator |
No |
- |
Without rectangular flange |
Yes |
A |
Outlet rectangular flange only |
Yes |
B |
Inlet rectangular flange only |
Yes |
C |
Inlet and outlet rectangular flanges |
Yes |
- |
Without specific option |
Yes |
A |
With specific options ( factory fitted ) |
Yes |