CNPVP
CNRVP
Installation Instructions
Cased N Coils
Upflow --- Downflow
Heating --- Cooling
NOTE
: Read the entire instruction manual before starting the
installation.
TABLE OF CONTENTS
PAGE
SAFETY CONSIDERATIONS
1
. . . . . . . . . . . . . . . . . . . . . . . . .
INTRODUCTION
1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLATION
1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspect Equipment
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Select Installation
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation of Furnace Coils
3
. . . . . . . . . . . . . . . . . . . . . . . .
Connect Refrigerant Piping
5
. . . . . . . . . . . . . . . . . . . . . . . . .
Connect Refrigerant, Liquid and Suction Lines
5
. . . . . . . . . .
Refrigerant Metering Device
5
. . . . . . . . . . . . . . . . . . . . . . . .
Condensate Drain Line Connection
5
. . . . . . . . . . . . . . . . . . .
Humidifier Application
6
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service, maintenance,
or use can cause explosion, fire, electrical shock, or other
conditions which may cause personal injury or property damage.
Consult a qualified installer, service agency, or your distributor or
branch for information or assistance. The qualified installer or
agency must use factory--authorized kits or accessories when
modifying this product. Refer to the individual instructions
packaged with the kits or accessories when installing.
Follow all safety codes. Wear safety glasses and work gloves. Use
quenching cloth for brazing operations. Have fire extinguisher
available. Read these instructions thoroughly and follow all
warning or cautions attached to the unit. Consult local building
codes and National Electrical Code (NEC) for special
requirements.
It is important to recognize safety information. This is the safety
alert symbol
. When you see this symbol on the unit and in
instructions or manuals, be alert to the potential for personal injury.
Understand the signal words DANGER, WARNING, CAUTION,
and NOTE. These words are used with the safety--alert symbol.
DANGER identifies the most serious hazards which
will
result in
severe personal injury or death. WARNING signifies hazards
which
could
result in personal injury or death. CAUTION is used
to identify unsafe practices which
may
result in minor personal
injury or product and property damage. NOTE is used to highlight
suggestions which
will
result in enhanced installation, reliability, or
operation.
IMPORTANT
: Nitrogen can leak out through the hole that the
needle pierced in the plugs. This does not indicate a leaking coil
nor warrant return of the coil.
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury
or death.
Before installing, modifying or servicing system, always turn
off main power to system. There may be more than one
disconnect switch. Lock out and tag switch with a suitable
warning label.
!
WARNING
PERSONAL INJURY HAZARD
Failure to follow this caution may result in personal injury.
This coil contains Nitrogen precharge of 15 PSIG. Release of this
pressure through the center of the rubber plugs is required before
removing the plugs.
CAUTION
!
CUT HAZARD
Failure to follow this caution may result in personal injury.
Sheet metal parts may have sharp edges or burrs. Use care and
wear appropriate protective clothing and gloves when handling
parts.
CAUTION
!
INTRODUCTION
Use this instruction manual to install indoor coils on upflow or
downflow furnaces. Do not install coil in horizontal position.
Models CNPVP/CNRVP are enclosed in a painted casing and both
coils have factory--installed TXV’s. CNPVP models are used with
Puron (R--410A) systems and CNRVP models are used with R--22
systems.
NOTE
: Models with tin--plated copper coils, “T” in the 11th
position of the model number, are installed the same as standard
copper coils.
INSTALLATION
These units can be installed in multiple configurations. Before
installation, there are several performance requirements that must
be considered because poor installation can negatively alter
performance. This section will briefly discuss those factors.
