INSTALLATION MANUAL
FULL-CASED UPFLOW/COUNTERFLOW FOR
COOLING/HEAT PUMPS
MODELS: CF
FULL-CASED MULTI-POSITION FOR
COOLING/HEAT PUMPS
MODELS: CM
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
COIL INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
DUCT CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Pressure Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Vapor Line Grommet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Coil Air Flow Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
SECTION I: GENERAL
This instruction covers the installation of the following coils with fur-
naces or MP / ME / MVC modular air handlers.
The coils have sweat connect fittings. All coils are shipped with a low
psi nitrogen holding charge. See Figures 1.
SECTION II: SAFETY
This is a safety alert symbol. When you see this symbol on
labels or in manuals, be alert to the potential for personal
injury.
Understand and pay particular attention to the signal words DANGER,
WARNING, or CAUTION.
DANGER indicates an imminently hazardous situation, which, if not
avoided, will result in death or serious injury.
WARNING indicates a potentially hazardous situation, which, if not
avoided, could result in death or serious injury.
CAUTION indicated a potentially hazardous situation, which, if not
avoided may result in minor or moderate injury. It is also used to alert
against unsafe practices and hazards involving only property damage.
Johnson Controls Unitary Products
LIST OF SECTIONS
LIST OF FIGURES
Piston Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
TXV Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
CM "N" & "A" Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Drain Traps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
LIST OF TABLES
Improper installation may create a condition where the operation of
the product could cause personal injury or property damage.
Improper installation, adjustment, alteration, service or maintenance
can cause injury or property damage. Refer to this manual for assis-
tance or additional information, consult a qualified installer or service
agency.
The furnace area must not be used as a broom closet or for any other stor-
age purposes, as a fire hazard may be created. Never store items such as
the following on, near or in contact with the furnace.
1. Spray or aerosol cans, rags, brooms, dust mops, vacuum clean-
ers or other cleaning tools.
2. Soap powders, bleaches, waxes or other Cleaning compounds;
plastic items or containers; gasoline, kerosene, cigarette lighter
fluid, dry cleaning fluids or other volatile fluid.
3. Paint thinners and other painting compounds.
4. Paper bags, boxes or other paper products
Never operate the furnace with the blower door removed. To do so could
result in serious personal injury and/or equipment damage.
WARNING
!
WARNING
!
ISO 9001
Certified Quality
Management System