Granby KLF-100, Инструкция по установке, эксплуатации и обслуживанию

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25
Step Possible Cause Check-out procedure Corrective action
6
Blower
. Low speed
Check if the
constant low
speed switch is
ON
Check for 120 Volts at the
''CONT'' terminal on
the electronic fan
control
Check for 120 Volts on
both side of the constant
low speed switch
Yes - Move to next step
No - Change the electronic fan control
Yes - Check ''LOW'' speed on
the blower motor
No - Change the switch
No Cooling
7
Blower .
High speed
Cooling Speed
Check for 24 Volts between
G and C on electronic fan
control
Check for 120 Volts at the
''COOL'' terminal of
the electronic fan
control
Yes - Move to next step
No - Check thermostat and wiring; if
it's OK, then change the electronic fan
control
Yes - Check ''COOL'' speed on
the blower motor
No - Change the electronic fan control
No Cooling
8 Condensing unit
Check for 24 volts between
terminal Y and C on the
electronic fan control
Yes - Compressor ON
No - Check thermostat and wiring
Electronic air filter and Humidifier
9 Electronic air filter
Check for 120 Volts on
terminal ''EAC'' of the
electronic fan control
(thermostat must call a
Heat, Cool or Fan ON
demand Yes - Electronic filter failure
No - Change the electronic fan
control
10 Humidifier
Check for 120 Volts on
terminal ''HUM'' of the
electronic fan control
(burner must be
energized) Yes - Humidifier failure
No - Change the electronic fan
control