User Manual

YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
33
OUTDOOR WIRING: OUTDOOR-INDOOR UNIT & DISCONNECT SWITCH
BOX/CIRCUIT BREAKER/FUSE
 Remove the wiring diagram cover where also the handle
for moving unit is located.
 Following the wiring diagrams on the unit or the wiring
diagram manual that comes with the indoor unit to get
familiar with the wiring and make sure everything is
correct. If there is any discrepancy, always use the
diagram that is attached to the units.
 Connect wires between indoor unit and outdoor unit-
power wire from outdoor to Indoor, control wires from
Indoor unit to outdoor unit. Pass wire through certified
wire pipes, harnesses and knockouts. Enough length
shall be left for future service. Only copper wire is
allowed.
 Strictly follow NEC or state or local codes to select
wires, circuit breaker, conduits while performing
installation work
 Bring in line-voltage power input wires from circuit
breaker to line-voltage wire terminal block at outdoor
unit. Pass through certified wire pipes, harnesses and
knockouts. Enough length shall be left for future service.
Only copper wire is allowed.
PIPING AND WIRING SIZES
Model
Liquid / Gas
Line
Min/Max Length/
+/-Elevation
Power Wire Min.
Disconnect Switch Box to
Outdoor Unit
Power/ Control Wire Min.
Outdoor to Indoor Unit
Recommended HVAC
Circuit Breaker/Fuse
AMP (to Outdoor Unit)
09K
1/4" & 3/8"
15/70 /35/45
L1/L2/G, 208-230/1/60, 10AWG
N(1)/2/3/G, 208~230/1/60, 16AWG
15
12K
1/4" & 3/8"
15/75 /35/45
L1/L2/G, 208-230/1/60, 10AWG
N(1)/2/3/G, 208~230/1/60, 16AWG
15
18K
1/4" & 1/2"
15/100/50/60
L1/L2/G, 208-230/1/60, 10AWG
N(1)/2/3/G, 208~230/1/60, 16AWG
20
24K
1/4" & 5/8"
15/100/50/60
L1/L2/G, 208-230/1/60, 10AWG
N(1)/2/3/G, 208~230/1/60, 16AWG
30
30K
1/4" & 5/8"
15/125/50/60
L1/L2/G, 208-230/1/60, 8AWG
N(1)/2/3/G, 208~230/1/60, 16AWG
30
36K
1/4" & 5/8"
15/125/50/60
L1/L2/G, 208-230/1/60, 8AWG
N(1)/2/3/G, 208~230/1/60, 16AWG
40
CONNECT REFRIGERANT PIPES BETWEEN THE INDOOR AND OUTDOOR UNITS
First, connect the copper tubes at indoor unit. Bend the pipes accordingly using pipe bending tools. Do Not hand
bend the pipes as this could kink the pipe. Extra length is required for future service.
REFRIGERANT PIPES
For a distance other than 25' between indoor and horizontal venting condensing units, refer to the following table for
copper sizes.
Refrigerant Valve and Pipe Size/Length
Btu/h
Valve Size
Line Sizes at Different Lengths
Liquid Gas
15 – 30 ft.
31 – 60 ft.
09K
1/4”, 3/8”
1/4”, 3/8”
1/4”, 3/8”
12K
1/4”, 3/8”
1/4”, 3/8”
1/4”, 3/8”
18K
1/4”, 1/2”
1/4”, 1/2”
1/4”, 1/2”
24K
1/4”, 5/8”
1/4”, 5/8”
3/8”, 5/8”