Westinghouse 18K-24K, Инструкция по использованию и установке

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Installation and Maintenance
17
Installation and Maintenance
6.4 Electrical Installation
●
Use an ELB (Electric Leakage Breaker). If not used, it may cause an electric shock or a fire.
●
Do not operate the system until all the check points have been cleared.
(A) Ensure the insulation resistance is more than 2MΩ, by measuring the resistance between
ground and the terminal of the electrical parts. If not, do not operate the system until the electrical leakage
is found and repaired.
(B) Check to ensure that the stop valves of the outdoor unit are fully opened and then start the system
.
Model Capacity(Btu/h)
Transmission
Cable Size
9K~36K 4
×
16AWG
7. Trial Run
Please perform trial run according to outdoor unit installation manual.
Note
：
(1) Follow national and local codes and regulations when selecting sizing field wiring, and all the above are the
minimum wire sizes.
(2) Use copper supply wires.
(3) When the transmission cable length exceeds 49 ft. (15m) , a larger wire size should be selected.
(4) Install
main disconnect and ELB for each system separately . Select the high response type ELB that is acted within
0 . 1second .
1
.
When connecting the terminal block using stranded wire, make
sure to use the round crimp-style terminal for connection to the
power supply terminal block. Place the round crimp-style
terminals on the wires up to the covered part and secure in place.
2 . When connecting the terminal block using a single core wire, be
sure to perform curing.
<Attentions when Connecting the power supply wiring>
Terminal
Stranded wire
Single core wire
covered part
Round crimp
-
style terminal
6.3 Wire Routing
(1) Remove the screws and the cover.
(2) Pass the power supply wiring through the opening in the conduit panel.
(3) Fasten the conduit connection to the conduit panel using the lock nut.
(4) Connect the power supply wiring to the terminal.
(5) Secure the power supply wiring with the clamp.
(6) After completing the wiring, seal the wire opening with the sealing material.
(7) Reinstall cover after completing the work.
Conduit
connector
Lock nut
Power supply
wiring
Cover
Conduit panel
WARNING