8
MAIN SWITCH
The main switch is located on the access panel to the electrical box of the outdoor unit.
The main switch is equipped with a clutch gadget, which allows opening the panel of the electrical box, when it is
on OFF position.
Verify that the main switch is large enough to handle the current for the unit if electric heaters are installed.
PHASE SEQUENCER
The phase sequencer is located in the electrical box in the outdoor section, thus assuring that the unit will not
begin operation while the phase connection of the compressor is not correct. Should this occur, then just switch
two phase connections.
ON/OFF CONDENSATION PRESSURE CONTROL
The condensation pressure control consists of one or two pressure switches, which starts and stops the outdoor
fan, regulating the condensation temperature; thus the unit will be able to operate in the cooling cycle when the
outdoor temperature is below 19ºC (until 0ºC).
It includes crankcase heater for cooling only units. The purpose of the heater is to keep the oil in the compressor
at the correct temperature while the compressor is stopped, so that it can be properly lubricated when starts again.
When the unit is operating at low outdoor temperatures (below 19ºC), it is advisable to fit a crankcase heater.
PROPORTIONAL CONDENSING PRESSURE CONTROL
It is an element which regulates outdoor fan speed, in order to control condensation temperature. Thus, the unit
will be able to operate in the cooling cycles when the outdoor temperature is below 19ºC (until -10ºC). This kit
includes crankcase heater for cooling only units.
COMPRESSOR STARTING CURRENT CONSTRAINED (SOFT STARTER) 400V-III
It is an electronic element, which reduces the peak compressor starting current up to 40% (see pages of electrical
data without soft starter).
HOT GAS BYPASS VALVE
The purpose of the BYPASS valve is to let the unit operate at low outdoor temperatures (until -10°C), to be used
in cooling only and heat pump units in cooling cycle.
It regulates the capacity of the compressor by injecting hot gas from the compressor discharge side to the coil.
REMOTE AMBIENT SENSOR AND REMOTE DUCT SENSOR
These sensors may be used in conjunction with remote controller or allowing the controller to be mounted in a
room away from the conditioned space.
REMOTE DUCT SENSOR:
The sensor will be located in the return-air duct, detecting the air temperature of the air being air-conditioned.
REMOTE AMBIENT SENSOR:
The sensor will be placed in the area to be air-conditioned.
1.6.- AVAILABLE OPTIONS
1.- GENERAL CHARACTERISTICS
MODELS
24E-32E-38E-43E
48D/D2-64D/D2-76D/D2-86D/D2
WEIGHTS (*)
3
6
(*) Add to the unit's weight.
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