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CABINET HEATER
9.6
Main Fan Circuit (Three Phase)
Main fan will not operate following
warm up period of heat exchanger
Check for 400v three phase supply
at main terminals
Fault lies elsewhere
Check for 230v at terminals 1 to N
Press in white button of fan/limit
thermostat and retest.
Check the setting of the
fan thermostat as in Section 5.1
Fault lies elsewhere
Check calibration of the fan
thermostat.
The dial should indicate the approx.
temperature of the sampled air
Fan thermostat faulty.
Replace and reset.
Reset thermal overload and check
setting. See Note 1.
Check for 230v at coil terminals
of fan contactor
Does fan run now ?
Check for 400v three phase at
input and output of contactor
Contactor or overload faulty.
Replace as necessary.
Check and test wiring to motor.
Motor faulty.
Replace complete fan unit.
Motor stops after running some time
Thermal overload in motor faulty. Replace complete
fan unit (direct drive fans only)
MOTOR RUNNING
Note 1:
Direct drive fans have a built-in thermal overload which cannot be adjusted or
replaced. This is connected to the two grey wires with grey sleeve.
Note 2:
Direct drive fans are normally changed as a complete assembly to ensure
correct fan balancing.
NO
NO
YES
YES
NO
NO
NO
YES
NO
YES
YES
NO
YES
NO
Содержание Combat HF 30 v4
Страница 2: ......
Страница 47: ...Page 45 CABINET HEATER Section 6 Wiring Diagrams Fig 6 1 As Wired Diagram for Models 015 to 030 Floor Standing ...
Страница 48: ...Page 46 CABINET HEATER Fig 6 2 As Wired Diagram for Models 015 to 030 Horizontal Mounting ...
Страница 49: ...Page 47 CABINET HEATER Fig 6 3 As Wired Diagram for Models 040 and 050 Floor Standing ...
Страница 50: ...Page 48 CABINET HEATER Fig 6 4 As Wired Diagram for Models 040 050 Horizontal Mounting ...
Страница 51: ...Page 49 CABINET HEATER Fig 6 5 As Wired Diagram for Models 060 to 0100 Floor Standing ...
Страница 52: ...Page 50 CABINET HEATER Fig 6 6 As Wired Diagram for Models 060 to 0100 Horizontal Mounting ...
Страница 55: ...Page 55 CABINET HEATER Fig 6 12 Wiring Diagram for High Flow Models HF40 v3 HF50 v2 HF50 v3 and HF50 v4 ...