Fan Motor; Low Energy Consumption Fan Motor; Maintenance - Carrier 42N S Manual De Instalación Y De Uso

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 configured 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 flow modulation (and therefore the thermal and refrigerating
capacity) thanks to the Inverter technology combined with the last
generation of high energy-efficient electric motors (EC brushless). This
enables a constant control on the power supplied according to the
room that need to be conditioned. The result is 50% electric energy
saving compared to traditional 3-speed asynchronous motors and a

Maintenance

IMPORTANT:
The following maintenance operations should be carried out by
qualified 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 overflow.
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
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 fins 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 fins.
Motor
The motor is permanently lubricated.
Therefore no periodical maintenance is required.
ONLY FOR SIZE 15
FACTORY
WHIT ELECTRIC
CONNECTION
HEATER
RED -
-
WHITE RED
WHITE
BLACK BLACK
BLUE BLUE
FACTORY
CONNECTION
BLACK
WHITE
RED
BLUE
42N_S 42N_E 31