Typical Multi-Zone System Components - Lennox MPA018S4M-*P Installation Instructions Manual

Typical Multi-Zone System Components

Return Air
Filter
Suppl y Air
Indoor unit wiring connections
(under access plate)
Up to 5 ports depending on outdoor unit model
Indoor unit type may vary
Up to 5 ports depending on outdoor unit model
Port E
Liquid line shut off valve
Gas line shut off valve
Port D
Liquid line shut off valve
Gas line shut off valve
Port C
Liquid line shut off valve
Gas line shut off valve
Port B
Liquid line shut off valve
Gas line shut off valve
Port A
Liquid line shut off valve
Gas line shut off valve
MWMA009 Shown
MPA018S4M Shown
Outdoor Unit Appearance May Vary by Capacity
Liquid and vapor line service
and shut off valves
Figure 1. Typical System Shown
I
MPORTANT - Condensate drain line must always
be located at the bottom of the
bundle.)
Wiring
Condensate drain line
(wrapped in foam insulation)
Refrigerant Line Set, Condensate Line
IMPORTANT - The refrigerant
metering device for this system is
located in the outdoor unit. This
makes it necessary to insulate the
refrigerant lines individually to
prevent sweating.
UV-rated tape (field-provided)
Utility Bundle
One per
indoor unit
Condensate drain line
(field-provided, one per
indoor unit)
3
Line set
(wrapped in foam
insulation)
TAPE
And Indoor / Outdoor Cable
(field-provided)
Access cover for power
and control wiring
connections
See Outdoor Unit wiring
diagram for individual system
wiring.
208/230V Outdoor Unit
Terminal Block
L1 L2
MPA048S4M shown
Access cover for
service valves