www.johnsonandstarley.co.uk
20
11
Table 5
Fan Performance Curve
7.
INSTRUCTIONS FOR USERS
7.1
If the building is unoccupied, ensure that the Instructions for User are left taped to the air heater for the User, and
Installation Instructions are left at or near the air heater for use on future service calls.
7.2
If the building is occupied, hand the User Instructions over and ensure the User understands:
7.2.1
How to ignite the pilot and burner.
7.2.2
How to operate the Thermista-stat/room thermostat, time and heater ON/OFF switch and summer air circulation
switch, and that the time control must be reset following a power failure.
7.2.3 How to extinguish the Pilot and Main Burner at the Multifunctional Control, and switch off electrical supply to
the heater.
7.2.4
How to remove, clean and re-fit the Air Filter and at what intervals (i.e. fortnightly, or for new houses, weekly.
7.2.5
How to control the heating system by opening and closing warm air outlets.
7.2.6
How to obtain summer air circulation.
7.2.7
That the air grilles on the heater or heater compartment; grilles and ventilators in the walls, windows or doors of the
building must not be obstructed.
7.2.8
That the heater must be serviced at least once a year by a competent person to ensure efficient and safe operation.
7.2.9
That the red instructions for safe use have been pointed out and understood.
7.2.10 That expert help must be obtained if persistent failure of the pilot burner occurs.
MAIN BURNER ON, BUT FAN NOT RUNNING
mbar in.wg.
0.625 0.25
0.50 0.20
0.375 0.15
0.25 0.10
0.125 0.05
RESIST
ANCE EXTERNAL
T
O HEA
TER
500
600
700
800
900
1000 ft
3
/min
0.23
0.28
0.33
0.38
0.43
0.47 m
3
/sec
AIR VOLUME
15
0V
17
0V
19
0V
21
0V
23
0V
MODAIRFLOW DEFECT DIAGNOSIS FLOW CHART
MAIN BURNER NOT CYCLING
(
ROOM TEMPERATURE TOO HIGH)
18
N
CHECK FOR VOLTAGE AT
FAN LIVE TO EARTH
REPLACE
ELECTRONICS
MODULE
Y
N
IS
FUSE
OK ?
REPLACE FUSE
N
Y
CHECK FOR
VOLTAGE
AT FAN LIVE TO
NEUTRAL
Y
REPLACE FAN
DOES
FAN
START?
N
BRIDGE OUT
AIRFLOW SENSOR
Y
REPLACE
AIRFLOW SENSOR
REPLACE
TRANSFORMER
REPLACE
MULTIFUNCTIONAL
CONTROL
N
Y
REPLACE
ELECTRONICS
MODULE
DISCONNECT
YELLOW WIRE AT
MULTIFUNCTIONAL
CONTROL
N
DOES
BURNER
GO OUT?
DISCONNECT
THERMISTA-STAT
REPLACE
THERMISTA-STAT
Y
DOES
BURNER
GO OUT?
10. FAULT FINDING
MODAIRFLOW FAULT FINDING
Summary of Contents for 42-451-15
Page 25: ...25 Sales Spares Replacement Help Line 01604 762881 Fig 5b Non MODAIRFLOW CIRCUIT DIAGRAM...
Page 26: ...www johnsonandstarley co uk 26 12 FUNCTIONAL DIAGRAMS Fig 6a Non MODAIRFLOW FUNCTIONAL DIAGRAM...
Page 27: ...27 Sales Spares Replacement Help Line 01604 762881 Fig 6b Non MODAIRFLOW FUNCTIONAL DIAGRAM...
Page 28: ...www johnsonandstarley co uk 28 13 DIMENSIONS Fig 7 HI SPEC J90 DIMENSIONS...
Page 29: ...29 Sales Spares Replacement Help Line 01604 762881 14 NOTES...
