Instruction Manual
©2022 Lennox Industries Inc.
Dallas, Texas, USA
Page 1
RETAIN THESE INSTRUCTIONS FOR
FUTURE REFERENCE
WARNING
Improper installation, adjustment, alteration, service
or maintenance can cause property damage, personal
injury or loss of life. Installation and service must be
performed by a licensed professional HVAC installer or
equivalent, service agency, or the gas supplier.
CAUTION
As with any mechanical equipment, contact with sharp
sheet metal edges can result in personal injury. Take
care while handling this equipment and wear gloves and
protective clothing.
Shipping and Packing List
Check parts for shipping damage; if any damage is found,
immediately contact the last shipping carrier.
Package 1 of 1 contains:
2 – Check valve assemblies (for dual circuit coils)
1 – Installation instruction
Catalog # Model # Part # Aected
Units
16G33 A2CVLV11N-1 603163-03
ELA240
EL240XA
General
This instruction is intended as a general guide and does
not supersede local codes in any way. Consult authorities
who have jurisdiction before installation.
1
2
6
3
7
5
8
4
CATALOG# 16G33
1. Check Valve
2. Liquid Line - 5/8"
3. Tee - 5/8" x 5/8" x 5/8" OD
4. Tee - 7/8" x 7/8" x 5/8" OD
5. Straight Tube - 5/8"
6. Straight Tube - 7/8"
7. Expansion Valve (TXV)
8. Equalizer Tube - 1/4" OD
FIGURE 1. Component Layout
HEAT PUMP
KITS AND ACCESSORIES
507756-01
06/2022
HEAT PUMP CHECK VALVE KIT
INSTALLATION INSTRUCTIONS FOR HEAT PUMP CHECK VALVE KIT –
USED WITH ELA240 / EL240XA SERIES UNITS