Outdoor Unit Terminal - Johnson Controls DHPM09NWM42Q1 Installation Manual

L1 L2
MAIN
POWER
MAIN
POWER
L1 L2
L1 L2
L1
L1
L2
L2
C
INDOOR / OUTDOOR
CABLE ENTRY
A
INDOOR / OUTDOOR
CABLE ENTRY
MAIN POWER FROM OUTDOOR UNIT DISCONNECT
FIGURE 34: 42K Outdoor Unit Terminal
REFRIGERANT PIPING CONNECTIONS
A Service port cap protects the service port core from contamination
and serves as the primary leak seal. To access service port:.
1. Remove service port cap with an appropriate sized wrench.
2. Connect gauge set to service port.
3. When testing is complete, replace service port cap and tighten as
follows:
a. With torque wrench - Finger tighten then torque cap per Table 11
requirements.
b. Without torque wrench - Finger tighten then use appropriate
sized wrench to turn an additional 1/6 turn clockwise.
Stem cap protects the valve stem from damage and serves as the pri-
mary seal. Replace the stem cap and tighten as follow:
1. With torque wrench - Finger tighten and use torque cap per Table
11.
Johnson Controls Unitary Products
42 KBTU OUTDOOR UNIT (FIVE ZONE MAXIMUM)
To unit B
To unit C
To unit A
N(1) 2 3
power
connection
cable
cable
TO INDOOR TO INDOOR
UNIT
OUTDOOR
UNIT
A
N(1) 2
N(1) 2 3 N(1)
N(1)
A
A
INDOOR UNIT INDOOR UNIT
D
INDOOR /
OUTDOOR
CABLE ENTRY
B
INDOOR /
OUTDOOR
CABLE ENTRY
To unit C
N(1) 2 3 N(1) 2 3
connection connection
cable cable
TO INDOOR
UNIT
UNIT
OUTDOOR OUTDOOR
UNIT UNIT
B
C
3 N(1) 2 3 N(1) 2
2 3 N(1) 2 3
B C
B C
INDOOR UNIT
Check indoor to outdoor field wiring to confirm (N)1 from indoor
goes to (N)1 outdoor, terminal 2 from indoor goes to terminal 2
outdoors and terminal 3 indoors goes to terminal 3 in outdoor.
2. Without torque wrench - Finger tighten then use an appropriate
sized wrench to turn an additional 1/12 turn clockwise.
• Fasten flare nut with a torque wrench as specified in Table 9.
• When fastened too tight, flare nut may break after a long period
and cause refrigerant to leak.
INDOOR UNIT CONNECTION
• Connect both liquid and gas pipes to indoor unit.
• Apply a sealing cap or water-proof tape to prevent dust or water
from getting into the refrigerant piping before it is connected.
• Apply a thin coat of refrigerant oil on the seal surface of the pipe.
• For connection, first align the union tube and flared refrigerant
line with each other then tighten the flare nuts lightly at first to
obtain a smooth match.
898150-UIM-B-0113
To unit C To unit C
To unit D To unit D
N(1) 2 3 N(1) 2 3
connection
connection
cable
cable
TO INDOOR
TO INDOOR
UNIT UNIT
OUTDOOR
UNIT
D
2 3
N(1)
3 N(1)
N(1) 2 3 N(1)
D
D
INDOOR UNIT
LEGEND
N(1) = L1
2 = Data line
3 = L2
= Ground
IMPORTANT
NOTICE
2 3
2 3
E
INDOOR UNIT
17