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THIS MANUAL MUST BE LEFT WITH THE
HOMEOWNER FOR FUTURE REFERENCE
WARNING
Improper installation, adjustment, alteration, service or
maintenance can cause personal injury, loss of life, or
damage to property.
Installation and service must be performed by a licensed
professional installer (or equivalent) or a service agency.
WARNING
Risk of explosion or fire.
Can cause injury or death.
Recover all refrigerant to relieve pressure before
opening the system.
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.
IMPORTANT
The Clean Air Act of 1990 bans the intentional venting of
refrigerant (CFCs, HCFCs and HFCs) as of July 1, 1992.
Approved methods of recovery, recycling or reclaiming
must be followed. Fines and/or incarceration may be
levied for noncompliance.
INSTALLATION
INSTRUCTIONS
CH35 Series Units
INDOOR COILS WITH ALL-ALUMINUM COIL
507656-01
7/2018
NOTE - Not available in all areas. Contact your nearest
Lennox Sales Office for details.
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General
CH35 all-aluminum coil horizontal evaporator coils are
designed for use with air conditioners and heat pumps.
Each coil is equipped with a compression fitting that
provides convenient field installation of a properly sized,
separately ordered expansion valve.
The coil drain pan is high quality engineering polymer with
a maximum service temperature of 500°F. However,
adequate space must be provided between the drain pan
and furnace heat exchanger. At least 2" space is required
for heat exchanger and 4" for drum-type or oil-fired furnace
heat exchanger. Closer spacing may damage the drain
pan and cause leaking.
Refer to the CH35 Product Specification bulletin (EHB) for
proper use of these coils with specific furnaces, air
conditioners, heat pumps and line sets.
These instructions are intended as a general guide and do
not supersede local or national codes in any way. Consult
authorities who have jurisdiction before installation.
IMPORTANT: Special procedures are required for
cleaning the aluminum coil in this unit. See page 8 in this
instruction for information.
Shipping and Packing List
Package 1 of 1 contains the following:
1 - CH35 evaporator coil
Check the components for shipping damage. If you find
any damage, immediately contact the last carrier.
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Related Manuals for Lennox CH35 Series
Summary of Contents for Lennox CH35 Series
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Page 1: Table Of Contents
INDOOR COILS WITH ALL-ALUMINUM COIL 507656-01 7/2018 NOTE - Not available in all areas. Contact your nearest THIS MANUAL MUST BE LEFT WITH THE Lennox Sales Office for details. HOMEOWNER FOR FUTURE REFERENCE Table of Contents WARNING General ........ -
Page 2: Specifications
Model Number Identification CH 35 Cabinet Unit Type F = Cased CH = Indoor Coil - Horizontal Metering Device Series 2 = Factory-Installed RFC (The factory-installed orifice must be removed and replaced by a properly sized expansion valve.) Nominal Cooling Capacity 18 = 1.5 tons 48 = 4 tons Cabinet Width... -
Page 3: Releasing Air Charge
NOTE - In areas of high humidity, use foam tape to insulate to allow room for proper installation (approximately 6 the suction line section in the cabinet as shown in figure 1. inches minimum). See figure 5. Page 3 CH35 SERIES... - Page 4 NOTE - When the coil is connected directly with a condensing furnace, the coil must be level from return end TEST HOLE to supply end. The front (access side) of the furnace may FIELD‐FABRICATED be pitched downward up to 1 inch to accommodate a INSULATED BLOCK- OFF PLATE ½-inch pitched coil.
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Page 5: Refrigerant Line Connections
The system must include a properly matched expansion copper-to-brass or copper-to-steel connections). valve which must be field-provided and installed. The Use AL822 Flux Cord Solder Stickers (Lennox catalog CH35 is shipped with a factory-installed refrigerant metering orifice. The orifice must be removed BEFORE number Y6331) for aluminum to aluminum joints. -
Page 6: Leak Testing, Evacuating And Charging
2. IMPORTANT: Using two wrenches, disconnect the WARNING liquid line stub from the orifice housing. Take care not to twist or damage the distributor tubes during this There must be an airtight seal between the bottom of the process. furnace and the return air plenum. Use fiberglass sealing 3. -
Page 7: Blower Speed Connection
AIR DUCT RETURN AIR with Permagum. DUCT FLOW 4. Turn on the electrical power to the furnace and set the thermostat to initiate a cooling demand. TEST HOLE SUPPLY AIR UNIT FRONT Figure 11. Static Pressure Test Page 7 CH35 SERIES... -
Page 8: Maintenance
1400 moderate pressure (less than 50psi). If the coil can -48C-2F 1600 not be cleaned using water alone, Lennox recom mends use of a coil cleaner with a pH in the range of -51C-2F 1600 5 to 9. The coil must be rinsed thoroughly after...
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