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1. Checks before lighting the Air Heater
The following checks must be made before lighting the heater(s)
a) Ensure that the Auto/OFF switch on the heater panel is
switched to OFF
b) Ensure that the electrical supply to the heater is switched ON.
b) Check that the MC200 is calling for heat (See MC200 User
Instructions).
c) Check that any other controls are calling for heat and, if there
is a Summer/Winter mode, it is set to Winter.
d) Check that the overheat (Limit) thermostat has not operated.
2. Lighting the Air Heater
2.1 Gas-fired Heaters
1. Switch the Auto/OFF switch to Auto.
2) The main air fans will start. Note that, with the exception of
the TE21, the fan start may be staggered in which case the
second fan will not start until the first is running.
3) The burner air fan will run and after a pre purge period of
approximately 30 seconds the ignition spark will be generated.
TE21
The main gas valves will open and the main burner will be
established
TE 31, 41 & 61
The start gas valves will be opened and a start gas flame
established. When a start gas flame is established the main gas
valves will be energized and the start gas flame will expand to
main flame.
NOTE:
If the main burner or a start gas flame fails to establish
the burner will go to lockout and the lockout indicator / reset
button on the burner control box will be illuminated. To restart
the burner push the lockout reset button. Additional, more easily
accessible, controls may be fitted that mimic the lockout indicator
and reset button functions.
If the unit will not light after four or five attempts then shut
down the unit and call in a service engineer.
2.2 Oil-fired Heaters
NOTE:
If it is not possible to light the heater after 2/3 attempts
contact the local service company.
1. Switch on the electrical supply at the isolator.
2. The main air fans will start. Note that, with the exception of
the TE21, the fan start may be staggered in which case the
second fan will not start until the first is running.
3. The burner air fan will run and after a pre purge period of
approximately 30 seconds the ignition spark will be generated
and the oil valve opened. The main burner will then fire.
NOTE:
If the burner fails to light it will go to lockout and the
lockout indicator / reset button on the burner control box will
be illuminated. To restart the burner push the lockout reset
button.
If the unit will not light after two or three attempts then shut
down the unit and call in a service engineer.
3. To Shut Down the Air Heater
3.1 For Short Periods:
Set the MC200 to OFF (See MC200 User Instructions).
3.2 For Long Periods:
Set the MC200 to OFF. Wait approximately 4-5 minutes
Users Instructions
for the residual heat in the heat exchanger to be dissipated
and then turn off the gas or oil supplies and electric supplies
to the heater.
4. Description of Operation
Important:
All heaters must be controlled by the fitted controls
and not by use of the main switch in the electrical supply to the
heater.
TE heaters are designed for the main air fans to run continuously
thereby continually circulating the air in the building. The burner
start up sequence will commence when the MC200 calls for
heat. The burner air fan will run and after a pre purge period
the burner will light.
When the MC200 is satisfied the burner will be turned off. On
Hi/Lo and Modulating units the firing rate of the burner will be
adjusted automatically by the MC200 to suit the heat demand.
4.1 Summer / Winter Modes
Summer: The heater fans alone will run at the dictate of the
MC200 to provide air movement.
Winter: The heater will operate normally.
5. Fan and Limit Control
The fan and limit controls are mounted towards the top of the
side panels of the heat exchanger section .
i) Main Air Fan MAN / Auto
When the white button (Refer to Figure 1 below) is pushed in
the fans will run continuously i.e not controlled by any external
controls e.g. Timeclock. When the white button is pulled out
the fans will start and stop automatically in conjunction with
the burner. See Section 4.
PUSH MAN
PULL AUTO
H o n e y w e l l
Fig 1. Fan Thermostat
White
Fan
button
ii) Limit Thermostat
This operates if high temperatures within the heater are detected,
the burners are turned off and a red indicator light on the front
of the heater is illuminated. The fault condition must be identified
and rectified and the thermostat manually reset. Remove the
black cover cap and press the exposed button to reset.
When the unit has cooled push the reset switch on the front of
the heater to reset the limit thermostat interlock relay, the red
indicator light will go out and the unit is operational again.
Note: The limit thermostat(s) can only be reset once the unit
has cooled down.
Unless the cause of the fault condition is readily obvious, for
example a power cut whilst the heater was operating, a service
engineer should be contacted.
6. Maintenance
Regular servicing is essential to maintain efficient, reliable and
safe operation of the heater. Users are strongly recommended
to have the heater serviced at least annually and preferably at
the end of the heating season.
7. IMPORTANT
Free access must be maintained to and around the heater for
servicing purposes and the air supply to the heater must not be
restricted in any way. Combustible materials must not be stored
adjacent to the heater.
All Powrmatic heaters use gas, or oil, and electricity to power
them, they may also contain moving parts such as pulley belts.
It would be hazardous to tamper with or attempt to service unless
you are a competent person in the field of Gas and Electrical
work.
If you have any safety questions reference the servicing and
installation of any of our heaters please do not hesitate to contact
our head office for expert advice.
Your safety is paramount to us.
For gas fired heaters only:
If at any time a gas leak is suspected turn OFF the gas supply
- DO NOT USE A NAKED FLAME - and contact the local gas
undertaking immediately.
Gas Safety (Installation & Use) Regulations
It is law that all gas appliances are installed, adjusted and, if
necessary, converted by qualified persons* in accordance with
the latest edition of the above regulations. Failure to install
appliances correctly can lead to prosecution. It is in your own
interests and that of safety to ensure that the law is complied
with.
* An approved class of person listed on the gas register.
