18
DISMANTLING PROCEDURE
ALWAYS ISOLATE THE HEATER FROM THE ELECTRICAL SUPPLY/SUPPLIES
before
undertaking any maintenance work. As Tele-switching of off peak supplies becomes more common,
and the times at which off peak supplies are available varies, it is essential that the off peak
consumer unit as well as the adjacent isolator switch are both switched off prior to servicing the
heater.
A. FRONT PANEL
1.
To remove the front panel, release the screws along the bottom edge of the front panel.
2.
Pull the bottom edge of the front panel forwards and lift the top flange away from the top lip of
the rear cover. Put the front cover in a safe place to prevent damage.
B. HEATING ELEMENT
WARNING:
- Allow the heater sufficient time to cool down before any attempt is made to remove
the element.
1.
Release the Live and Neutral connections from each end of the straight length, heating
element.
2.
Using suitable long nosed pliers bend back the 4 retaining tags at each end of the element.
3.
Lift the element away from the heater.
4.
Fit the new element, ensuring adequate electrical clearance between the terminals and the
outer casing and/or the PCB.
5.
Straighten the 4 retaining tags to secure the element.
IMPORTANT:
The retaining tags provide electrical bonding of the element sheath to the main Earth
connection. It is vital that these tags securely grip the element. After changing an element check the
resistance between the element sheath and the earth terminal. Resistance must be less than 0.5
Ω
.
6.
Reconnect the cables to the element terminals. Ensure the push on connections securely grip
the element terminal pin.
7.
Refit the front cover and the retaining screws. Ensure the screws are securely tightened as they
provide the earth bonding for the front panel.
C. WALL BRACKET
1.
To replace the wall bracket, firstly lift the heater upwards, then pull the top of the unit away from
its location.
2.
Release the white plastic restraining strap(s) from the rear of the heater and lift the complete
unit away from the bracket.
3.
Remove the bracket from the wall.
4.
Fit the new bracket securely to the wall.
5.
Enter the heater on the hooks at the bottom of the wall bracket. Rise the heater towards an
upright position, fasten the strap(s) and fasten the heater on the top of the wall brackets.
D. OVERHEAT THERMOSTAT
WARNING:
Allow the heater sufficient time to cool down, before any attempt is made to replace the
thermostat.
The heater must be isolated from the electricity supply before changing the thermostat.
1.
Remove the front cover as described earlier.
Содержание 85510
Страница 11: ...11 PROGRAMME HEATING PROFILES Fig 7...
Страница 15: ...15 Setting Frost Protection Temperature Setting the Set Back Temperature...
Страница 16: ...16 PROGRAMMING THE CREDAZONE CONTROLLER Week Programming...
Страница 20: ...20 For spare parts contact Applied Energy Products Ltd National Spares Line 08700 102829...