Johnson & Starley 42-451-15, Инструкции по установке, пусконаладке и обслуживанию

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6.8 SAFETY CHECKS :
6.8.1 Check for gas soundness within the appliance.
6.8.2 Spillage test: Carry out a full spillage test as follows, and ensure that the flue operates effectively with all doors
closed and any extractor fans in operation.
NOTE: If an extractor fan is situated in an adjoining or adjacent room, carry out the spillage test with the interconnecting
doors open.
If the draught diverter is accessible:
a. Introduce smoke into the Draught Diverter adjacent to an exit from the Heat Exchanger, by means a smoke
match or puffer.
b. Ensure that there is no spillage present (indicated by displacement of smoke downwards and out of the
Draught Diverter).
If the Draught Diverter is not accessible:
a. Introduce smoke, by means of
part
of a smoke pellet on a non-combustible support, into the Heat
Exchanger.
b. Extinguish the Main and Pilot Burners.
c. Ensure that there is no spillage evident by visually observing the Draught Diverter location on the air
heater.
d. If spillage is evident, further investigation and rectification is required before re-testing the appliance.
e. Repeat spillage tests but with the fan running, or Summer Airflow switch set to ON.
WARNING: The appliance shall not be left connected to the gas supply unless it has successfully passed
the above spillage test.
6.8.3 Turn OFF the gas supply at the service cock and ensure that the Multifunctional Control fail-safe operates within
60 secs (indicated by loud click from Multifunctional Control).
6.8.4 Turn gas supply ON at the Service Cock.
6.8.5 Switch the appliance electrical supply OFF.
6.8.6
MODAIRFLOW models , disconnect the Air Circulation Fan at the flying socket
6.8.7
Non-MODAIRFLOW models
, disconnect the Air Circulation Fan at the Electrical Panel.
6.8.8 Switch the appliance electrical supply ON.
6.8.9 Ignite the Main and Pilot Burners as detailed in sub para 6.3.1 to 6.3.5
6.8.10 Ensure that the Limit Switch operates, indicated by the Main Burner extinguishing, within 120 and 180 seconds.
6.8.11 Switch the appliance electrical supply OFF.
6.8.12 Reconnect the Air Circulation Fan.
6.8.13 Switch the appliance electrical supply ON.
6.8.14 Ensure that the Main Burner re-ignites when the appliance temperature reduces, (
note: with the fan disconnected,
there may be some delay before the Main Burner re-ignites).
Low Rate Low Medium Rate High Medium Rate High Rate
kW MJ/h Btu/h kW MJ/h Btu/h kW MJ/h Btu/h kW MJ/h Btu/h
INPUT 27.8 100.0 94,780 30.2 108.6 102,965 32.9 118.5 112,325 34.8 125.2 118,665
OUTPUT 20.5 73.9 70,000 22.6 81.2 77,000 24.6 88.6 84,000 26.4 95.0 90,000
Gas rate cv 2.65m
3
/h (93.58ft
3
/h) 2.87
3
/h (101.66ft
3
/h) 3.14m
3
/h (110.90ft
3
/h) 3.31m
3
/h (117.17ft
3
/h)
1037Btu/ft
3
Burner setting 11.0mbar (4.4 in wg) 13.3mbar (5.3 in wg) 14.8mbar (5.9 in wg) 17.0mbar (6.8 in wg)
pressure (hot)
Main Injector
BRAY CAT 23/700
Table 4
Main Burner Pressure Settings
19
REPLACE
ELECTRONIC
MODULE
WIRING DEFECT
BETWEEN HEATER
&
THERMISTA-STAT
MAIN BURNER NOT OPERATING
IS
PILOT
LIT ?
IS 230V
SUPPLY
ON ?
IS TIME
CONTROL &
THERMISTA-STAT
CORRECTLY
SET ?
CHECK
TERMINAL
D9 IS
18V
CHECK
TERMINAL
C8 IS
230V
CHECK
TERMINAL
C10 IS
24V
IS
GAS
ON ?
N
TURN GAS
ON
N
LIGHT
PILOT
Y
Y
SWITCH ON
230 V
N
Y
N
Y
REPLACE
FUSE
N
Y
REPLACE
MULTIFUNCTIONAL
CONTROL
SET CONTROLS
CORRECTLY
Y
N
CHECK POLARITY OF
THERMISTA-STAT
CONNECTIONS
Y
IS
POLARITY
CORRECT ?
N
RECTIFY
DEFECT
Y
BRIDGE THERMISTA-STAT
TERMINALS AT HEATER
BRIDGE THERMISTA-STAT
TERMINALS AT HEATER
IS
BURNER
LIT ?
IS
BURNER
LIT ?
N
Y
N
N
Y
N
CHECK, TTB
LIMIT SWITCH
&
CONNECTIONS
Y
N
CHECK 230V I/P
& TIME CONTROL
OPERATION
REPLACE
THERMISTA-STAT
REPLACE
TRANSFORMER
Y
IS
FUSE
OK ?
CHECK
24V AT
MULTIFUNC-
TIONAL
CONTROL