Fan Motor; Low Energy Consumption Fan Motor; Maintenance - Carrier 42N_S Manuel D'installation

Fan Motor

The units have tangential/centrifugal motors with selectable
speeds.
There are 5 speeds available:
For sizes S15-S20-S30-S45, there are 5 available speeds Ultra
Low- Low-Medium-High-Super High (see table on the right).
All machines are conigured at the factory as follows:
ULTRA LOW - MEDIUM – SUPER HIGH.
In the case of particular needs, it is possible to move the speed
connections (with Faston quick-connectors) following the
enclosed table and relative drawing (see Fig. 29).
For sizes S26-S42-S65 3 speeds are available: Low-Medium-High
(see tab. on the side).

Low Energy Consumption Fan Motor

Low Energy Consumption Fan Motor version
The fan coil units of the series 42NE... can ensure a 0% - 100%
constant air low modulation (and therefore the thermal and
refrigerating capacity) thanks to the Inverter technology
combined with the last generation of high energy-eicient
electric motors (EC brushless). This enables a constant control
on the power supplied according to the room that need to be

Maintenance

IMPORTANT:
The following maintenance operations should be carried out by
qualiied personnel.
Disconnect the mains power supply prior to any maintenance
operations or prior to handling any internal parts of the unit.
Condensate draining
During the summer season check that the condensate drain is
free from dust and lint that could clog it, causing condensate
water overlow.
Motor 5 speed
CABLE COLOR
MOTOR SPEED
ENGINE
ULTRA LOW RED
LOW YELLOW
MEDIUM WHITE
HIGH ORANGE
SUPER HIGH BLACK
MOTOR NEUTRAL BLUE
Motor 3 speed
MOTOR SPEED CABLE COLOR
ENGINE
HIGH BLACK
MEDIUM WHITE
LOW RED
MOTOR NEUTRAL BLUE
conditioned. The result is 50% electric energy saving compared
to traditional 3-speed asynchronous motors and a considerable
reduction of acoustic emissions.
The new range of fan coil units 42NE is equipped with 4 Low
Energy Consumption Fan Motors one of which is tangential and
3 centrifugal.
Heat exchanger coil
At the beginning of any winter and summer season it is
advisable to check that the coil ins are not clogged with dust,
lint or other foreign matter.
Clean the heat exchanger after having removed the supply
grille, taking care not to damage the ins.
Motor
The motor is permanently lubricated.
Therefore no periodical maintenance is required.
ONLY FOR
FACTORY SIZE 15 WHIT
CONNECTION ELECTRIC
HEATER
RED -
-
WHITE RED
WHITE
BLACK BLACK
BLUE BLUE
FACTORY
CONNECTION
BLACK
WHITE
RED
BLUE
31
42N_S 42N_E