Table of Contents
Advertisement
Indoor Blower Speeds
NOTE: When this unit is used with a Comfort Sync
thermostat, proper indoor blower speed selections are
made by the communicating thermostat.
When the thermostat is set to "FAN ON", the indoor blower
will run continuously at 38% percent of the second stage
cooling speed when there is no cooling or heating demand.
See Table 23 for allowable continuous circulation speeds.
1.
When the unit is running in the heating mode, the
integrated control will automatically adjust the blower
speed to match the furnace firing rate. This speed can
be adjusted up or down by 7.5% or 15% using DIP
switches 14 through 16 for the low heat speed and 17
through 19 for the high heat speed. See Table 22 for
allowable heating speeds.
2.
When there is a cooling demand, the indoor blower will
run on the cooling speed designated by the positions
of DIP switches 8 through 11.
NOTE: The discharge air temperature sensor is intended
to be mounted downstream of the heat exchanger and air
conditioning coil. It must be placed in free airflow, where
other accessories (humidifiers, UV lights etc.) will not
interfere with its accuracy. Wiring distance between the
furnace and discharge air sensor should not exceed 10 ft.
when wired with 18 gauge thermostat wire.
Page 32 of 73
Generator Use - Voltage Requirements
The following requirements must be kept in mind when
specifying a generator for use with this equipment:
•
The furnace requires 120 volts ± 10% (Range: 108
volts to 132 volts).
•
The furnace operates at 60 Hz ± 5% (Range: 57 Hz
to 63 Hz).
•
The furnace integrated control requires both polarity
and proper ground. Both polarity and proper grounding
should be checked before attempting to operate the
furnace on either permanent or temporary power.
•
Generator should have a wave form distortion of less
than 5% THD (Total Harmonic Distortion).
Issue 2241
507029-05
Advertisement
Table of Contents
