Installation Guide

Replacement Condenser Only
Conventional Line Set Installation
Unit Installation
mrcool.com Page 18
Existing Air Handler
Existing Air Handler
in house
Accessory copper
90 pipe Q+y*2
Purge with
Nitrogen
Weld joint
Purge with
Nitrogen
must be
410 air handler
and 410 TXV
Bioow valve
MRCOOL® Universal® Series DC Inverter
MRCOOL® Universal® Series
Must open stop
valves after pulling
vacuum and before
powering on
WELD Type Complete Unit Replacement
Weld joint
Weld joint
Air Handler
DC Inverter
Open stop valves with allen wrench only
after nishing lineset connections and
before powering on the unit
must have 410
TXV Bioow valve
Must install lter drier bi ow
with this installation type
Must install lter drier bi ow
with this installation type
Must Purge with Nitrogen
before brazing joints
Must Purge with Nitrogen
before brazing joints
Fig. 2.15
Fig. 2.16