User's Manual

40
MULTI ZONE MINI-SPLITS
Outdoor Unit
Branch Box
UTP-PU03B
Branch Box
UTP-PU03B
40 amp
disconnect
40 amp
HVACR
Breaker
= 3PST
= 2PST
Optional Disconnect Switch
(or where code requires)
Ground
15 amp
HVACR
Breaker
Power Supply
2 Wire + Ground*
*Alternate Branch Box Power Configurations (Not Shown):
Each Branch Box may be powered from a separate 15A dedicated HVACR breaker or from a single 15A
dedicated HVACR breaker using a daisy chain to connect to secondary branch boxes.
Ground
Wiring
Branch Box
UTP-PU03A
High Voltage Com-
munication
3 Wire + Ground
Power and
Communication
3 Wire + Ground
Central Remote
Control
18 - 20 AWG
Branch Box Terminal Connections
High Voltage Communication
from Condenser
Out to Secondary
Branch Box
Out to Secondary
Branch Box
Central Remote
Power
Supply
Out to
Indoor #1
Out to
Indoor #2
Out to
Indoor #3
Miswiring Detection
Errors Detected For...
 Miswired terminals
 Incorrect indoor unit
 Less than 2 or more than
8 indoor units
 Less than 39,000 or more
than 62,000 BTUs
Power
Supply
Out to
Indoor #1
Out to
Indoor #2
Out to
Indoor #3
Central Remote
In From Primary
Branch Box
Primary Branch Box
Secondary Branch Box
Main Breaker
40
15
208-230
Power Supply
Junction Box
UTY-DMMUM
flex
48,000 BTUs