www.johnsonandstarley.co.uk
10
Fig. 3
PILOT BURNER ASSEMBLY
6.4
MAIN BURNER PRESSURE TEST:
NOTE: AIR HEATER BURNERS ARE FACTORY SET TO PROVIDE A NOMINAL HIGH RATE OUTPUT AS
DETAILED IN SUB PARA 1.2
6.4.1
Referring to Table 4 and Fig. 4 below, ensure that the pressure test gauge indicates the correct burner pressure,
resetting if required as follows:
a.
At the Multifunctional Control:
i.
Remove the Burner Pressure Adjuster cover.
ii.
Set the Burner Pressure Adjuster to provide a pressure test gauge indication for the correct burner
pressure as detailed in Table 4
iii.
Refit the Burner Pressure Adjuster cover.
6.4.2 Apply the pressure set arrow to indicate the appropriate burner pressure on the data badge.
6.5
EXTINGUISHING OF BURNERS AND TEMPERATURE RISE TEST:
6.5.1
On the Multifunctional Control, rotate the OPERATING CONTROL clockwise to the ‘
l
’ position and ensure that
the OPERATING CONTROL fully resets, and both Pilot and Main Burners are extinguished.
6.5.2
On the Multifunctional Control, remove the pressure test gauge and refit the Outlet Pressure test point cover.
6.6
TEMPERATURE RISE CHECK:
6.6.1
Ignite the Pilot and Main Burners and allow 15 minutes for stability before continuing.
6.6.2
With the Main Burner operating continuously, check that the temperature rise across heater is between 45
o
C -
55
o
C, setting the fan speed accordingly, (decrease fan speed to increase temperature rise). For MODAIRFLOW
heaters, adjusting the balancing screw sets the fan speed; whilst for non-MODAIRFLOW heaters, the fan speed is
adjusted by selecting the fan speed at control panel (decrease voltage selection to decrease fan speed).
Note: Tapping 1 = 170V, Tapping 2 = 180V, Tapping 3 = 195V, Tapping 4 = 210V, Tapping 5 = 230V.
8
21
Thermocouple
Electrode
Pilot Burner
6.3.6
Ensure that the pilot flame envelops the thermocouple tip, adjusting the Multifunctional Control Pilot Adjuster as
required (refer Fig. 3).
6.3.7
Set the air heater Electricity supply
ON.
6.3.8
Set the Time Control to the required Heating On periods.
6.3.9
Set the Selector switch to ‘TIMED’.
6.3.10 Set the Thermista-stat or room thermostat to MAXIMUM.
6.3.11 Ensure that the main burner has now ignited.
6.3.12 Test for gas leakage at the supply, Multifunctional control, Pilot and Main burners using proprietary detection
fluid, sealing any leaks found.
6.3.13 Allow the heater to operate for a minimum of 15 minutes to ensure stability.
Fig. 5a, MODAIRFLOW CIRCUIT DIAGRAM
Fig. 3
PILOT BURNER ASSEMBLY
6.4
MAIN BURNER PRESSURE TEST:
NOTE: AIR HEATER BURNERS ARE FACTORY SET TO PROVIDE A NOMINAL HIGH RATE OUTPUT AS
DETAILED IN SUB PARA 1.2
6.4.1
Referring to Table 4 and Fig. 4 below, ensure that the pressure test gauge indicates the correct burner pressure,
resetting if required as follows:
a.
At the Multifunctional Control:
i.
Remove the Burner Pressure Adjuster cover.
ii.
Set the Burner Pressure Adjuster to provide a pressure test gauge indication for the correct burner
pressure as detailed in Table 4
iii.
Refit the Burner Pressure Adjuster cover.
6.4.2 Apply the pressure set arrow to indicate the appropriate burner pressure on the data badge.
6.5
EXTINGUISHING OF BURNERS AND TEMPERATURE RISE TEST:
6.5.1
On the Multifunctional Control, rotate the OPERATING CONTROL clockwise to the ‘
l
’ position and ensure that
the OPERATING CONTROL fully resets, and both Pilot and Main Burners are extinguished.
6.5.2
On the Multifunctional Control, remove the pressure test gauge and refit the Outlet Pressure test point cover.
6.6
TEMPERATURE RISE CHECK:
6.6.1
Ignite the Pilot and Main Burners and allow 15 minutes for stability before continuing.
6.6.2
With the Main Burner operating continuously, check that the temperature rise across heater is between 45
o
C -
55
o
C, setting the fan speed accordingly, (decrease fan speed to increase temperature rise). For MODAIRFLOW
heaters, adjusting the balancing screw sets the fan speed; whilst for non-MODAIRFLOW heaters, the fan speed is
adjusted by selecting the fan speed at control panel (decrease voltage selection to decrease fan speed).
Note: Tapping 1 = 170V, Tapping 2 = 180V, Tapping 3 = 195V, Tapping 4 = 210V, Tapping 5 = 230V.
8
21
Thermocouple
Electrode
Pilot Burner
6.3.6
Ensure that the pilot flame envelops the thermocouple tip, adjusting the Multifunctional Control Pilot Adjuster as
required (refer Fig. 3).
6.3.7
Set the air heater Electricity supply
ON.
6.3.8
Set the Time Control to the required Heating On periods.
6.3.9
Set the Selector switch to ‘TIMED’.
6.3.10 Set the Thermista-stat or room thermostat to MAXIMUM.
6.3.11 Ensure that the main burner has now ignited.
6.3.12 Test for gas leakage at the supply, Multifunctional control, Pilot and Main burners using proprietary detection
fluid, sealing any leaks found.
6.3.13 Allow the heater to operate for a minimum of 15 minutes to ensure stability.
Fig. 5a, MODAIRFLOW CIRCUIT DIAGRAM
Fig. 3
PILOT BURNER ASSEMBLY
6.4
MAIN BURNER PRESSURE TEST:
NOTE: AIR HEATER BURNERS ARE FACTORY SET TO PROVIDE A NOMINAL HIGH RATE OUTPUT AS
DETAILED IN SUB PARA 1.2
6.4.1
Referring to Table 4 and Fig. 4 below, ensure that the pressure test gauge indicates the correct burner pressure,
resetting if required as follows:
a.
At the Multifunctional Control:
i.
Remove the Burner Pressure Adjuster cover.
ii.
Set the Burner Pressure Adjuster to provide a pressure test gauge indication for the correct burner
pressure as detailed in Table 4
iii.
Refit the Burner Pressure Adjuster cover.
6.4.2 Apply the pressure set arrow to indicate the appropriate burner pressure on the data badge.
6.5
EXTINGUISHING OF BURNERS AND TEMPERATURE RISE TEST:
6.5.1
On the Multifunctional Control, rotate the OPERATING CONTROL clockwise to the ‘
l
’ position and ensure that
the OPERATING CONTROL fully resets, and both Pilot and Main Burners are extinguished.
6.5.2
On the Multifunctional Control, remove the pressure test gauge and refit the Outlet Pressure test point cover.
6.6
TEMPERATURE RISE CHECK:
6.6.1
Ignite the Pilot and Main Burners and allow 15 minutes for stability before continuing.
6.6.2
With the Main Burner operating continuously, check that the temperature rise across heater is between 45
o
C -
55
o
C, setting the fan speed accordingly, (decrease fan speed to increase temperature rise). For MODAIRFLOW
heaters, adjusting the balancing screw sets the fan speed; whilst for non-MODAIRFLOW heaters, the fan speed is
adjusted by selecting the fan speed at control panel (decrease voltage selection to decrease fan speed).
Note: Tapping 1 = 170V, Tapping 2 = 180V, Tapping 3 = 195V, Tapping 4 = 210V, Tapping 5 = 230V.
8
21
Thermocouple
Electrode
Pilot Burner
6.3.6
Ensure that the pilot flame envelops the thermocouple tip, adjusting the Multifunctional Control Pilot Adjuster as
required (refer Fig. 3).
6.3.7
Set the air heater Electricity supply
ON.
6.3.8
Set the Time Control to the required Heating On periods.
6.3.9
Set the Selector switch to ‘TIMED’.
6.3.10 Set the Thermista-stat or room thermostat to MAXIMUM.
6.3.11 Ensure that the main burner has now ignited.
6.3.12 Test for gas leakage at the supply, Multifunctional control, Pilot and Main burners using proprietary detection
fluid, sealing any leaks found.
6.3.13 Allow the heater to operate for a minimum of 15 minutes to ensure stability.
Fig. 5a, MODAIRFLOW CIRCUIT DIAGRAM
7
22
Fi
g.
5
b,
N
on
-M
O
D
A
IR
FL
O
W
C
IR
C
U
IT
D
IA
G
RA
M
5.2.2
Thermista-stat/Room Thermostat and its location.
a.
The Thermista-stat/Room Thermostat should be located where there is free air circulation approx. 1.5m
(5ft) from the floor.
b.
Avoid the following locations:-
i)
In a room where temperature is greatly affected by the sun or any other heat source, e.g. radiant
fire, wall light fittings or TV set.
ii)
Near an outside door or windows, or on an outside wall.
iii)
Where affected by warm air ducts, diffusers, waste pipes or the heater itself.
iv)
Where subject to vibration.
c.
For MODAIRFLOW models, connect Thermista-stat wires to control panel terminals ‘4’ and ‘5’ (see Fig.
5a and 6a), connection polarity being important, cve side on control panel to +ve side on
Thermista- stat.
d.
For non-MODAIRFLOW models, connect room thermostat wires control panel terminals ‘16’ and ‘17’
5.3
GAS
(See BS 5864 and BS 6891)
5.3.1
An independent gas supply pipe from the meter is to be preferred wherever possible. When this is not possible,
the pipe must be capable of taking the complete input of the heater and all other gas appliances being served by
this same pipe. This supply should be suitably sized to conform to British Standards requirements of no more than
1.0 mbar (0.4in wg) pressure drop (See table of discharge in BS 6891).
5.3.2 The 1/2in union gas cock (supplied) must be fitted to the gas inlet of the heater for easy isolation during
servicing. The gas pipe should be so fitted and installed as to be durable, substantial and gas tight. To assist in
determining where a gas connection may not be tight, a leak detection fluid should be applied around the
connection. Under no circumstances should a flame be used to locate a gas leak. Gas entry to the air heater is
through either side to a Rc1/2 (1/2in BSP. external [taper] thread).
6.
COMMISSIONING
6.1
PREPARATION:
6.1.1
Ensure that:
a.
Gas and Electrical supplies are
OFF.
b.
Filter, fan and fan compartments are free from obstructions.
c.
All registers or grilles are open and conform to design specifications.
d.
Return, relief and ventilation air installations are adequate.
6.2
SYSTEM BALANCING:
6.2.1 Set the Air Heater electrical supply ON.
6.2.2 Set the ‘SUMMER AIR CIRCULATION’ switch to ‘
ON
’.
6.2.3 Balance the ducting system to provide the required volume proportions at the warm air outlets.
NOTE:
If the system includes ceiling diffusers, air velocities through these should be NOT LESS THAN 1.5m/s (300 ft/
min), except for very small rooms (i.e., bathrooms etc.). Outlet faces may require partial blanking in order to achieve this.
6.3
IGNITION OF PILOT AND MAIN BURNERS:
WARNING:
If the pilot light is extinguished either intentionally or unintentionally, no attempt should be made to
relight the gas for a minimum of 3 minutes. Ensure that the Electrical supply, Time Control and Selector switches are set
to
‘OFF’.
6.3.1
Set the Thermista-stat/room thermostat to lowest or
OFF
setting.
6.3.2
On the Multifunctional Control, remove the Outlet Pressure test point cover, and fit a pressure test gauge
(refer Fig. 4).
6.3.3 Turn the heater Gas supply
ON
, test for gas soundness and purge the whole gas pipe as described in BS 6891.
6.3.4 Referring to Fig .4, press and hold the OPERATING CONTROL, and whilst observing the Pilot Burner, repeatedly
press Piezo igniter button until Pilot Burner ignites.
6.3.5
After 20 seconds release the OPERATING CONTROL and let it spring out; ensure that the Pilot Burner remains
alight. If the Pilot Burner extinguishes, rotate the OPERATING CONTROL clockwise to the ‘
l
’ position and
ensure that the OPERATING CONTROL is fully reset. Wait three minutes and repeat steps 6.3.4 and 6.3.5,
holding the OPERATING CONTROL pressed for a longer period, until Pilot Burner remains alight.
6. COMMISSIONING
Содержание 42-451-14
Страница 24: ...www johnsonandstarley co uk 24 11 WIRING DIAGRAMS Fig 5a MODAIRFLOW CIRCUIT DIAGRAM...
Страница 25: ...25 Sales Spares Replacement Help Line 01604 762881 Fig 5b Non MODAIRFLOW CIRCUIT DIAGRAM...
Страница 26: ...www johnsonandstarley co uk 26 12 FUNCTIONAL DIAGRAMS Fig 6a Non MODAIRFLOW FUNCTIONAL DIAGRAM...
Страница 27: ...27 Sales Spares Replacement Help Line 01604 762881 Fig 6b MODAIRFLOW FUNCTIONAL DIAGRAM...
Страница 28: ...www johnsonandstarley co uk 28 13 DIMENSIONS Fig 7 HI SPEC J65 DIMENSIONS...
Страница 29: ...29 Sales Spares Replacement Help Line 01604 762881 14 NOTES...
Страница 31: ...31 Sales Spares Replacement Help Line 01604 762881 16 EXPLODED DIAGRAM Fig 8 HI SPEC J65 EXPLODED DIAGRAM...
