Marstair 526 HL Series, Техническое руководство, Страница: 30 / 31

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EVAPORATOR DE-ICE THERMOSTAT KIT 52600242
This kit stops the compressor running during cooling mode if the indoor coil starts to ice up, (due to lack of charge, blocked
filter or over condensing).
This kit
MUST be fitted to all HL/HLR units with LPHW coils fitted, to provide protection against the hot water system freezing.
ITEM QTY DESCRIPTION ITEM QTY DESCRIPTION
1 1 De-ice Thermostat 4 2 N
o.
10 x 3/8 Screw
2 1 Mounting Bracket 5 2 Cable Tie
3
1 Red Cable
6
2 Cable Clamp
ISOLATE THE UNIT ELECTRICALLY PRIOR TO INSTALLATION OF THE KIT.
1 Remove the filter tray (Fig. 1), release the cabinet retaining screws and remove the cabinet.
2 Screw the thermostat to the left hand hanger bracket using the 2 x N
o.
10 x 3/8 Screws.
3 Insert the thermostat phial into the hole in the left hand end of the fin block to a depth of at least 150mm; neatly coil the
excess capillary without kinking it.
4 Route the cables along the ledge beneath the drip tray using the self adhesive cable clamps to secure them; pass the
cables through the flexi-grommetted hole into the electrics tray.
5 The cables are supplied to suit HL/HLR 540 models. On all other models, gather the excess cable and secure neatly
with a cable tie.
6 For HL units: Refer to Fig. 3. Remove and discard the red cable between the heat/cool thermostat terminal 5 and
the terminal block. Cut the termination off the end of one of the de-ice thermostat cables and bare back
by approximately 10mm to allow it to fit terminal 3. Connect the other cable to the heat/cool thermostat
terminal 5.
7 For HLR units: Refer to Fig. 4. Remove and discard the black cable as indicated. Connect the de-ice thermostat
cables across the vacated terminals.
Fig. 1. Fig. 2.
Fig. 3. Fig. 4.