Carrier 42GW Installation Manual download pdf (Page 12)

GB - 11

42 GW

ENGLISH

Motorized valve and control

• If these connections are not made as described the drain

pan condensate may overflow.

• Valves should only open when the fan motor is working, i.e.

when one of TB1 terminals 1 or 2 or 3 is supplied from TB1

terminal 4.

• The optional electric heater (mod. 42GWE) which can only be

factory installed, must only be energized when the fan is

working.

• The optional electric heater which must be factory installed on

model 42GWE, works only if TB1 terminals 5-6 are supplied

from TB1 terminal 4.

• The water discharge pump should work every time the

cold water valve is opened, supplying TB1 terminal 7 and

8 from TB1 terminal 4.

• When the system is filled with water, verify all couplings

for tightness.

• The manufacturer does not accept responsibility for the

tightness of the field - installed valve assembly and this

is not tested in the factory. He declines any responsibility

for non functioning of these assemblies and for damage

due to dripping.

Electrical connections

 Capacitor

 Ground connection screw

 Board

 Relay board E-HTR (only on

models with electric heater)

 Holes for panel fixing screws

 Auxiliary board (accessory)













STANDARD version unit - Control panel

CG CP













A. Electric heater supply connection

B. Unit power supply connection

C. Polarised connector

mod. 004 - 008 - 010

mod. 012 - 016 - 020

Fan connector

Float connector

Pump connector

We recommend to remove the main board from the electric

panelboard for better access to electric connections.

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Carrier 42GW Installation Manual Page 12

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