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2.  STARTING AND STOPPING YOUR HEATER

IMPORTANT: BEFORE LIGHTING YOUR WARM AIR HEATER

, open the warm air outlets in all rooms, 

ensure any taps in the gas supply to the heater are turned on, the Thermista-stat at minimum setting, and the 
electrical supply to the heater is 

OFF

.

2.1  TO LIGHT YOUR AIR HEATER

2.1.1  Ensure that the gas supply to the heater is turned on.
2.1.2  Set both the “AIR HEATER” and “WATER HEATER” (if fitted) switches on the time control to the 

“OFF” position.

2.1.3  Turn the Thermista-stat (room temperature control) to  position “9” (see Figure x).
2.1.4  Switch on the electrical supply to the heater.
2.1.5  Set the “AIR HEATER” switch on the time control to “CONT” After a period of 60 seconds the 

burner will ignite automatically. Shortly afterwards the air circulation fan will start.

2.1.6  Adjust the Thermista-stat to the desired setting (see Section 4).
2.1.7  The heater will now operate automatically under thermostatic control.
2.1.8  The ignitor will spark for a maximum period of 60 seconds during which time the ignition 

SHOULD ignite. After this time the igniter will stop and the main burner will light. 

2.1.9  If, after carrying out the above instructions several times, the fails to light, contact your local 

service engineer.

2.2  LIGHTING YOUR WATER CIRCULATOR (if fitted)

2.2.1  Turn on the gas supply to the heater.
2.2.2  Set both the “AIR HEATER” and “WATER HEATER” switches on the time control 

unit to the “OFF” position.

2.2.3  Set the thermostat so that it reaches the maximum stop.
2.2.4  Turn on the mains power supply to the heater
2.2.5  Set the “WATER HEATER”  switch on the time control to “CONT.”
2.2.6  The ignitor will spark for a maximum period of 60 seconds after which time the 

ignition burner and main burner SHOULD  ignite and the igniter will stop. 

2.2.7  If the main burner fails to ignite, the red LED marked “LOCKOUT” will illuminate on 

the blue box.

2.2.8  Test for gas leakage at the supply, multifunctional control, ignition burner and 

main burner using proprietary detection fluid, sealing any leaks found.

2.2.9  Allow the circulator to operate for a minimum of 15 minutes to ensure stability.
2.2.10 Set the thermostat to the desired water temperature. 
2.2.11 Set the time control to the desired “on” and “off” periods.
2.2.12 Set the “WATER HEATER” switch on the time control to “TIMED”.

2.3  TO STOP YOUR AIR HEATER

2.3.1  For short periods, e.g. weekends

 

Turn the “AIR HEATER” switch to the “OFF” position, or turn the thermista-stat anti-clockwise to 
to its minimum setting. This will cause the burner to extinguish and the heater fan to stop once 
the heat exchanger has cooled. When you require the heating on again, turn to “AIR HEATER” 
switch to the “ON” position, or reset the thermista-stat to the desired setting.

2.3.2  For longer periods, e.g. a week or summer shutdown

 

Turn the “AIR HEATER” switch to the “OFF” position, set  the Thermista-stat to its minimum 
setting, then turn off the electricity supply to the heater.

WARNING: Do not turn off the electrical supply when the main burner is lit, as this may cause 

damage to the heater.

2.3.3 

IMPORTANT

 -  If summer air circulation is required, the electrical supply to the heater must 

remain on.

2.4  TO STOP YOUR WATER CIRCULATOR (if fitted)

2.4.1  For short periods, e.g. weekends

 

Turn the “WATER HEATER” switch to the “OFF” position, This will cause the burner to extinguish. 
When you require the Circulator on again, turn to “WATER HEATER” switch to the “ON” position.

2.4.2  For longer periods, e.g. a week or summer shutdown

 

Turn the “WATER HEATER” switch to the “OFF” position then turn off the electricity supply to the 
heater.

Summary of Contents for HI-SPEC J25SCA

Page 1: ...12 J25SCA AIR HEATER G C No 43 416 99 ELJAN 4 SE A WATER CIRCULATOR G C No 43 417 58 USER S INSTRUCTIONS HI SPEC J25SCA Warm Air Heater System E T Control Eljan 4 SEA Water Circulator These instructio...

Page 2: ...with the appropriate Building Regulations England and Wales All installations must be notified to Local Area Building Control either directly or through a Competent Persons Scheme A Building Regulatio...

Page 3: ...r at just the right amount to keep the selected temperature at a very precise level 1 3 2 By setting the Thermista stat to the temperature comfort level you require it constantly measures the actual r...

Page 4: ...onds after which time the ignition burner and main burner SHOULD ignite and the igniter will stop 2 2 7 If the main burner fails to ignite the red LED marked LOCKOUT will illuminate on the blue box 2...

Page 5: ...ATS THE CONTENTS OF THE HOT WATER CYLINDER THERE WILL BE SOME DELAY BETWEEN ANY CHANGE MADE AND A CHANGE IN THE TEMPERATURE OF THE HOT WATER 4 TIME CONTROLS 4 1 The integral time control Figure 2 enab...

Page 6: ...oviding this information please contact Johnson and Starley Service Department who will provide information of suitable service companies 6 TROUBLE SHOOTING 6 1 Check that the Thermista stat and Time...

Page 7: ...E from your Gas Service Centre before making any alterations likely to reduce the supply of fresh air to the heater 8 2 DO KEEP CLEAN and make sure you DO NOT OBSTRUCT any grilles on the heater in the...

Page 8: ...co uk marketing johnsonandstarley co uk Reception 01604 762881 Sales Spare 01604 707012 Service Warm Air Heating 01604 762881 Warm Air Upgrade 01604 707011 Johnson Starley Dravo Division Industrial H...

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