ZZ 1019/1E
7
7.12
TEMPERATURE RISE CHECK:
7.12.1 Ignite the Main burner and allow 15 minutes for stability before continuing.
7.12.2 Check that the temperature rise across the heater is between 45
o
C - 55
o
C, setting the fan speed accordingly,
(decrease fan speed to increase temperature rise). The fan speed is adjusted by the selecting fan speed at the
control panel (decrease voltage selection to decrease fan speed).
Note: Tapping 1 = 175V, Tapping 2 = 210V and Tapping 3 = 230V.
Fig. 5
Multifunctional control
8.
INSTRUCTIONS FOR USERS
8.1
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.
8.2
If the building is occupied, hand the User Instructions over and ensure the User understands:
8.2.1
How to operate the Thermostat, time and heater ON/OFF switch and summer air circulation switch, and that the
time control (if fitted) must be reset following a power failure.
8.2.2
How to turn off the appliance, and switch off electrical supply to the heater.
8.2.3
How to remove, clean and refit the air filter and at what intervals (i.e. fortnightly, or for new houses, weekly).
8.2.4
How to control the heating system by opening and closing warm air outlets.
8.2.5
That the heater must be serviced at least once a year by a competent person to ensure efficient and safe operation.
8.2.6
That the red instructions for safe use have been pointed out and understood.
8.2.7
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.
8.2.8
That expert help must be obtained if malfunction of the appliance occurs.
8.2.9
How to obtain summer air circulation.
8.2.10 How to reset the appliance in the event of lockout.
Inlet pressure test point
10
ZZ 1019/1E
9.12
CONTROL MODULE REPLACEMENT:
9.12.1 Ensure that the electrical supply is switched off.
9.12.2 Remove the heater front cover.
9.12.3 Disconnect the Control Module as follows, and with reference to Fig. 7:
a.
PINK
lead from the terminal marked ‘
C1
’,
b.
BLUE
lead from the terminal marked ‘
C2
’,
c.
RED
lead from the terminal marked ‘
C3
’,
d.
BROWN
lead from the terminal marked ‘
C4
’,
e.
YELLOW
lead from the terminal marked ‘
C5
’,
f.
YELLOW
lead from the terminal marked ‘
C6
’,
g.
RED
lead from the terminal marked ‘
C7
’,
h.
BLACK
lead from the terminal marked ‘
C8
’,
i.
WHITE
lead from the terminal marked ‘
C9
’,
j.
YELLOW
lead from the terminal marked ‘
C10
’.
9.12.4 Disconnect the 2 x
ORANGE
leads (from the Control Module Transformer) from the Control Module.
9.12.5 Remove the 2 x securing screws and nuts, and remove the control module.
9.12.6 Refitting or replacement is in reverse order.
9.13
COMBUSTION AIR FAN REMOVAL:
9.13.1 Ensure that the electrical supply is switched off.
9.13.2 Remove the heater front cover.
9.13.3 Disconnect the combustion air fan from the Control Module as follows:
a.
RED
lead from the terminal marked ‘
C7
’,
b.
BLACK
lead from the terminal marked ‘
C8
’,
c
WHITE
lead from the terminal marked ‘
C9
’,
d
YELLOW
lead from the terminal marked ‘
C10
’.
9.13.4 Remove the upper and lower screws securing combustion air fan, and withdraw the fan complete with gasket.
9.13.5 Refitting or replacement is in reverse order.
Important:
Ensure that the gasket is undamaged, and that the flue connection is sound. Only use the securing
screws supplied, as longer screws will cause damage to the heat exchanger.
9.14
FAN DELAY/LIMIT CONTROL (FDC) REMOVAL:
9.14.1 Ensure that the electrical supply is switched off.
9.14.2 Remove the heater front cover.
9.14.3 Disconnect the five conductors in the FDC lead from the control panel terminal strip, having first noted their
positions.
9.14.4 Release 2 x screws securing FDC to the bulkhead, and withdraw the FDC from the heater.
9.14.5 Refitting or replacement is in reverse order.
9.15
PRESSURE SWITCH REMOVAL:
9.15.1 Ensure that the electrical supply is switched off.
9.15.2 Remove the heater front cover.
9.15.3 Disconnect the Pressure Switch electrical connections as follows:
a.
BLACK
lead from the terminal marked ‘
1
’,
b.
WHITE
lead from the terminal marked ‘
2
’,
c
2 x
PINK
leads from the terminal marked ‘
3
’.
9.15.4 Disconnect the single flexible silicon tube from the pressure terminal marked ‘
P2
’ (forward most connection).
9.15.5 Disconnect the flexible silicon tube with the Tee-connector from the pressure terminal marked ‘
P1
’ (rearmost
connection).
9.15.6 Release the 2 x screws securing the Pressure Switch to the bulkhead, and withdraw the switch from the heater.
9.15.7 Refitting or replacement is in reverse order.
