Installation Manual

Page 23
mrcool.com
Outdoor Unit Installation
Fig. 5.6
ALL WIRING MUST PERFORMED STRICTLY IN
ACCORDANCE WITH THE WIRING DIAGRAM
LOCATED INSIDE THE OUTDOOR UNIT’S WIRE
COVER.
1.
Prepare the cable for connection:
USE THE RIGHT CABLE
BEFORE PERFORMING ANY ELECTRICAL
OR WIRING WORK, TURN OFF THE
MAINPOWER TO THE SYSTEM.
2. Remove the electrical wiring cover from the unit by
loosening the 3 retaining screws. Refer to Fig. 5.6.
3. Remove the caps on the conduit panel.
4. Temporarily mount the conduit tubes (not
included) on the conduit panel.
5. Properly connect both the power supply and low
voltage lines to the corresponding terminals on
the terminal block.
6. Ground the unit in accordance with local codes.
7. Be sure to size each wire so that it allows for it to
be several inches longer than the required length
for wiring.
8. Use lock nuts to secure the conduit tubes.
9. Replace the wire cover and reinstall the 3 screws.
• See table below for gauge requirements
G
Wire Cover
Terminal block
Conduit panel
Connecting cable
Power supply cord
Please select the appropriate through-hole
according to the diameter of the wire.
Over 1.57 in.(40 mm)
North America
Appliance
Amps (A)
AWG
20
20
15
9K
12K
9K
Model
Capacity
(BTU/hr)
Minimum Wire Gauge for Power Cables
MCA MOP Min. Pref.
14
14
14
12
12
14
15
15
10
1512K 14 1215
2018K 14 1215
25
3536K
24K 12
10
10
8
20
25
115V
208/
230V