Roberts Gorden Combat HF 30 v4, Инструкция по установке, пусконаладке, обслуживанию и эксплуатации

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CABINET HEATER
Section 10. User Instructions
The normal user controls are installed remote from the heater and will consist of, at minimum, a room thermostat.
Where a Roberts-Gordon control unit is used the operation of the heater will be fully automatic from this control as
described in the instructions supplied with the control.
The only user controls situated on the heater are:
The fan run button see 10.2.2
The limit thermostat reset see 10.2.2
The burner lockout reset button see 10.2.1
10.1 Heater Operation (On/Off Operation)
When the heater has been switched on (see Section 10.3) and the remote thermostat and/or time switch calls for heat,
the automatic control box turns on the burner and constantly monitors its safe operation (see Section 2.2).
When the heat exchanger is sufficiently heated, the fan thermostat turns on the main fan(s) and warm air is discharged
from the top of the heater.
Note: on horizontally mounted heaters, High Flow heaters and models with High/Low or Modulating burners and some
fully ducted heaters the fan will come on during the burner firing cycle and not wait for the temperature rise. This is to
ensure that there is always a proper operation of the heater under all possible conditions.
When the environmental working temperature, as set on the remote thermostat is achieved, the burner shuts off. The
main fan runs until all the heat has been extracted from the heat exchanger and the fan thermostat detects a drop in
leaving air temperature sufficient to turn it off. The heater then is at rest until the beginning of the next cycle.
10.1.1 Heater operation (for High/Low or Modulating)
The heater will operate as described above but with the added features as below
High /Low operation
A second thermostat or two stage thermostat will be installed on site so that as the temperature reaches the first set
point the firing rate will reduce to low fire . This gives a closer temperature control on controlled temperature and also
reduces the temperature of the air leaving the heater.
Should the temperature continue to rise to the second set point then the burner will turn off.
When the burner comes on again it may start at either the high fire or low fire rate dependant upon the temperature
adjacent to the temperature control.
To set the operating temperature of a two stage thermostat simply operate the contro to indicate the required temperature.
If two separate control thermostats are used then great care is required to ensure that the operation of the two thermostats
does not overlap. It is recommended that two stage controls are used to prevent this occuring.
Fully Modulating Operation
The on site control for these burners is a temperature controller that provides a varying output signal dependant upon
the ambient temperature to the control. The burner firing rate will continuously vary in sympathy with this output between
the maximum and minimum settings as set during commissioning. If the temperature continues to rise even though the
firing rate is at minimum then the burner will close down as in 10.1.
To set the operating temperature follow the instruction provided with the control.