SERVICE MANUAL - Alarko Carrier
SERVICE MANUAL - Alarko Carrier
SERVICE MANUAL - Alarko Carrier
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3 units (A + B + C) Multi 10-4-9. Check and Test Operation<br />
Terminal block (Connecting cable)<br />
For R410A, use the leak detector exclusively<br />
manufactured for HFC refrigerant (R410A,<br />
R134a, etc.).<br />
Screw<br />
Connecting cable<br />
(A unit)<br />
Connecting cable<br />
(B unit)<br />
Connecting cable<br />
(C unit)<br />
Fig. 10-4-14<br />
4 units (A + B + C + D) Multi<br />
Terminal block<br />
(Connecting cable)<br />
Power cord<br />
* The conventional leak detector for HCFC refrigerant<br />
(R22, etc.) cannot be used because its sensitivity<br />
for HFC refrigerant lowers to approx. 1/40.<br />
• Pressure of R410A becomes approx. 1.6 times of<br />
that of R22. If installation work is incompletely<br />
finished, a gas leakage may occur in the cases<br />
such as pressure<br />
rise during operation. Therefore, be sure to test<br />
the piping connections for leaking.<br />
Screw<br />
Flare nut connections<br />
(Indoor unit)<br />
30<br />
Connecting cable<br />
(A unit)<br />
Fig.10-4-15<br />
CAUTION<br />
• Wrong wiring connection may cause some<br />
electrical parts burn out.<br />
• Be sure to use the cord clamps specified<br />
positions with attached to the product.<br />
• Do not damage or scratch the conductive core<br />
and inner insulator of power and inter-connecting<br />
cables when peeling them.<br />
• Be sure to comply with local cords on running<br />
the wire from outdoor unit to indoor unit (size of<br />
wire and wiring method etc.)<br />
• Use the power cord and Inter-connecting cable<br />
with specified thickness, specified type, and<br />
protective devices specified.<br />
Stripping length power cord and connecting cable<br />
10<br />
L<br />
N<br />
Connecting cable<br />
(B unit)<br />
10<br />
40<br />
Earth line<br />
Power cord<br />
Connecting cable<br />
(C unit)<br />
30<br />
10<br />
Fig. 10-4-16<br />
Connecting cable<br />
(D unit)<br />
Power cord<br />
1 2 3<br />
10<br />
40<br />
Earth line<br />
Connecting<br />
cable<br />
• Service port cap<br />
connection<br />
• Valve stem cap<br />
connection<br />
Fig. 10-4-17<br />
• Check the flare nut connections, valve stem cap<br />
connections and service port cap connections for<br />
gas leak with a leak detector or soap water.<br />
CAUTION<br />
Flare nut connections<br />
(Outdoor unit)<br />
• Use a circuit breaker of a type that is not<br />
tripped by shock waves.<br />
• If incorrect/incomplete wiring is carried out, it<br />
will cause an electrical fire or smoke.<br />
• Prepare the power supply for exclusive use<br />
with the air conditioner.<br />
• This product can be connected to the mains.<br />
Connection to fixed wiring :<br />
A switch or circuit breaker which disconnects<br />
all poles and has a contact separation of at<br />
least 3 mm must be incorporate in the fixed<br />
wiring.<br />
An approved short circuit breaker or<br />
switches must be used.<br />
* (A breaker having a sensitivity of approximately<br />
0.1 second or less and a capacity<br />
of approximately 30 mA is usually used.)<br />
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