INSTALLTION
The unit may be mounted on a wall or solid ceiling using brackets supplied. It should be matched with the
appropriately sized outdoor unit; this instruction should be used in conjunction with the outdoor unit
installation instructions.
1. Fit all kits prior to installing the unit. (Heater kit is easier to fit when unit has been mounted).
2. Ensure that the mounting surface will support the operating weight of the unit (see table below).
3. Mark out the mounting positions and drill holes to suit 6mm rawlbolt shields or equivalent strength
fasteners (ensure that the unit is positioned
to give sufficient access (min 0.5m) to the
electrics access side).
4. Fix the mounting brackets to the unit in the
correct position for wall or ceiling mounting.
5. Raise the unit into position and secure the
fixings, ensuring that it is square and level.
6. Remove the drain tray then fit the drain
stub, nut & gasket (Fig.1). Refit the drain
tray.
Fig.1
CX(E) PIPEWORK
NITROGEN CHARGE
The unit contains a small charge of dry nitrogen, which should be discharged into the atmosphere. This is a
non-toxic, non-ozone depleting gas with no global warming potential.
PIPE CONNECTIONS
Pipework is terminated with 2 flare nuts & bonnets. Access is via the rear right hand side. Pipes exit the unit
through holes in the back panel.
INDOOR UNIT CX(E) 30 CX(E) 40 CX(E) 50 CX(E) 70
LIQUID / EXPANSION
3/8" 3/8" 3/8" 1/2"
SUCTION
1/2 " 1/2 " 1/2 " 5/8"
CONDENSATE DRAIN
Push fit connections are widely available for the 7/8” (22mm) OD condensate drain and 3/4"(19mm) ID drain
stub adaptor. Alternatively 7/8” (22mm) bore plastic tubing may be fitted directly to the stub/adaptor with a
hose clamp. Take care not to overtighten hose clamps as this could damage the stub pipe.
• Cables are routed to the terminal block via the cable cord grips at the rear of the unit and then through
the back of the electrics box (see page 2).
• Cables MUST be size compatible with the recommended system fuse.
CONTENTS
PARTS DESCRIPTION ACTION
Envelope containing operating instructions
and Declaration of Conformity
Pass to the end user.
Drain Stub/Nut/Gasket Fitted by installer.
Drain stub adaptor Convert to ¾" drain if required.
Mounting brackets plus fixings Use to hang unit.
0.037" restrictor (CX(E) 30 only) Use with CKR 30 outdoor unit
DRAIN TRAY
GASKET
NUT
DRAIN STUB
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