Nortek Q4SE-X24/PPH1SE, Руководство по установке

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5
OPERATINg INSTRUCTIONS
To Operate Your Heat Pump for Cooling —
1. Set the thermostat system mode to COOL
and the thermostat fan mode to AUTO. See
figure 1.
2. Set the thermostat temperature selector to the
desired cooling temperature. The outdoor unit
fan, the indoor blower, and the compressor
will all cycle on and off to maintain the indoor
temperature at the desired cooling level.
To Operate Your Heat Pump for Heating —
1. Set the thermostat system mode for HEAT
and the thermostat fan mode to AUTO. See
figure 1.
2. Set the thermostat temperature selector to the
desired heating temperature. The outdoor unit
fan, the indoor blower, and the compressor
will all cycle on and off to maintain the indoor
temperature at the desired heating level.
Emergency Heat — Some thermostats will
include a system switch position termed EM
HT or AUX HT, etc. With the system mode set
to EM HT, etc., the compressor and outdoor fan
will be locked off and supplemental heat (electric
resistance heating) will be used as a source of
heat. Sustained use of electric resistance heat in
place of the heat pump will result in an increase
in electric utility costs.
Defrost — During cold weather heating operation,
the outdoor until will develop a coating of snow
and ice on the heat transfer coil. This is normal
and the unit will periodically defrost itself. During
the defrost cycle, the outdoor fan will stop, while
the compressor continues to run and heat the
outdoor coil, causing the snow and ice to melt.
During defrost, there may be some steam rise
from the outdoor unit as the warm coil causes
some melted frost to evaporate.
SPECIfICATIONS
Single Package Heat Pumps are designed for
outdoor rooftop or ground level slab installations.
The units are shipped ready for horizontal duct
connections and are easily converted for down
flow applications.
All models are shipped from the factory with
the following:
1. Zero clearance to combustibles
2. Variable speed direct-drive blower.
3. 2-Stage compressor.
4. Demand defrost board.
5. Horizontal or Down flow duct
connections.
The unit dimensions are shown in figure 3.
Optional field-installed electric heater kits are
available in 5 kw through 20 kw heating capacities.
A separate installation instruction document
for the electric heaters and their application
accompanies this one. A two stage heat 24VAC
thermostat should be used with electric heater
kits installed.
figure 1. Typical Thermostat
TEMPERATURE
SENSOR FAN
SWITCH SYSTEM
MODE