Installation Verification; Pressure Check; Txv Check List; Drain Traps - York MC18A Installation Manual

SECTION X: INSTALLATION
VERIFICATION
Was the coil still under pressure when received?
Depress schrader
core to check for
pressure one time.
FIGURE 13: Pressure Check
Were all drains trapped or plugged?
Primary Drain
Alternate Drain
Trap Appropriate Side
(All other drain connections should be plugged)
FIGURE 16: Location of Trapped and Plugged Drain Connections
Subject to change without notice. Published in U.S.A.
Copyright © 2017 by Johnson Controls, Inc. All rights reserved.
Downflow Drain
Upflow Drain
Connections
Connections
Primary Drain
York International Corp.
Norman, OK 73069
Is coil metering device installed correctly?
Was the correct TXV installed per the outdoor unit instructions?
Is the TXV Bulb positioned correctly?
Is Bulb Insulated?
Is Equalizer Line connected?
FIGURE 14: TXV Check List
Were the primary and secondary
drains trapped correctly?
Primary
FIGURE 15: Drain Traps
Furnace
Left Hand
Discharge
Alternate Drain
(All other drain connections should be plugged)
5005 York Drive
Secondary
Furnace
Trapped
Horizontal Drain Conditions
5353649-UIM-A-0617
Supersedes: 900588-UIM-C-0214
3" Min.
Right Hand
Discharge