Carrier CNRVU3014ACAAAAA, CNRVU3617ACAAAAA, CNRVU4221ACAAAAA, CNRVU4821ACAAAAA, CNRVU2414ACAAAAA Installation Guide
...
Installation Instructions
NOTE: Read the entire instruction manual before starting the
installation.
TABLE OF CONTENTS
PAGE
SAFETY CONSIDERATIONS ......................... 1
INTRODUCTION ................................... 1
INSTALLATION .................................... 2
Procedure 1 -- Inspect Equipment .................... 2
Procedure 2 -- Select Installation .................... 3
Procedure 3 -- Installation of Evaporator Coil ........... 4
Procedure 4 -- Connect Refrigerant Piping ............. 6
Procedure 5 -- Connect Refrigerant Liquid
and Suction Lines .................... 6
Procedure 6 -- Condensate Drain Line Connection ....... 7
Procedure 7 -- Humidifier Application ................ 8
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service, maintenance,
or use can cause explosion, fire, electrical shock, or other
conditions which may cause death, personal iniury 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, protective clothing,
and work gloves. Use quenching cloth for brazing operations.
Have fire extinguisher available. Read these instructions
thoroughly and follow all warning or cautions included in literature
and attached to the unit. Consult local building codes and the
current editions of the National Electrical Code (NEC) NFPA 70.
In Canada, refer to the current editions of the Canadian Electrical
Code CSA C22.1.
Recognize safety information. When you see this symbol A'x on
the unit and in instructions or manuals, be alert to the potential for
personal iniury. 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 iniury or death.
WARNING signifies hazards which could result in personal iniury
or death. CAUTION is used to identify unsafe practices which
may result in minor personal iniury or product and property
damage. NOTE is used to highlight suggestions which will result
in enhanced installation, reliability, or operation.
ELECTRICALSHOCK HAZARD
Failure to follow this warning could result in personal iniury
or death.
Before installing or servicing system, always turn off main
power to system. There may be more than one disconnect
switch. Tag disconnect switch with a suitable warning label.
Turn off accessory heater power if applicable.
[]NIT OR PROPERTY DAMAGE HAZARD
Failure to follow this caution may result in product or
property damage.
This coil contains Nitrogen precharge of 15 PSI. Release of
this pressure through the center of the rubber plugs is
required before removing the plugs,
CUT HAZARD
Failure to follow this caution may result in personal iniury.
Sheet metal parts may have sharp edges or burrs, Use care and
wear appropriate protective clothing and gloves when
handling parts,
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.
INTRODUCTION
Use this instruction manual to install indoor coils on upflow or
downflow furnaces. (See Fig. 1.) Do not install coil in horizontal
position. Models CNPVU/CNRVU have factory-installed
thermostatic expansion valves (TXVs). CNPVU models are used
with Puron ® refrigerant (R410A) systems and CNRVU models are
used with R- 22 systems.
INSTALLATION
These units can be installed in either upflow or downflow
configurations. Before installation, there are several performance
requirements that nmst be considered because poor installation can
negatively alter performance. This section will briefly discuss those
factors.
TXV
A thermal expansion valve is utilized in this coil design to optimize
performance and comfort throughout the entire operating range of
the system. Special attention needs to be taken to the TXV when
installing the coil
• Do not overheat valve. Temperatures that exceed 212°F (100°C)
can harm valve performance. Use a wet cloth or heat sink when
brazing.
• Place filter dryer near ID unit to reduce the risk of debris
clogging the valve.
• Make sure TXV bulb is securely fastened and wrapped in the
indentation on heater tube.
CNPVU Models:
These coils have a factory-installed hard-shutoff TXV designed
only for use with R-410A refrigerant. Use only with outdoor units
designed for R- 410A.
CNRVU Models:
These coils have a factory-installed hard-shutoff TXV designed
only for use with R-22 refrigerant. Use only with outdoor units
designed for R- 22.
NOTE: All TXVs have preset superheat settings and are not
field- adjustable,
Airflow
Airflow amount and distribution are vital to adequate system
performance. Problems that can be experienced with incorrect
airflow include:
• low system performance
• restricted TXV
• frosted coil
• poor hunfidity control
• water blow- off
When attaching the coil and building the plenum, pay special
attention to the effect these details will have on airflow. After
system start-up, check the cfm to insure that it is correct.
(Generally, the cfm should be 350 to 400 cfm/ton during normal
cooling operation.)
Condensate Management
With proper installation, these coils will manage the condensate
without blow- off into the duct work. See detailed instructions for
more info.
Procedure 1 -- Inspect Equipment
File claim with shipper if equipment is damaged.
The following parts are included with this coil (See Fig. 1),
depending on your application different components will be
required.
COMPONENT QUANTITY
Support Rails 2
Collar 1
Header Plate 1
Grommets 2
Extension Air Baffles 2
O
©
o
Header Plate
1 pc.
Extension Air Baffles
2 pcs. (Attached to coil)
Uncased N-coil
Support Rails
2 pcs.
Collar
1 pc.
A06362
Fig. 1 - Uncased N-Coil Components
2
Procedure 2 -- Select Installation
Select and follow the installation instruction that best suits your needs:
Applications
Uncased N - Coil
I
Cased
Applications
I I
1
Cased " A "
Old CD5
Follow
procedure
3A
MODEL NUMBER TONNAGE
CNPVU1814A(C,T,L)A 1- 1/2
CNPVU1917A(C,T,L)A 1- 1/2
ON PVU2414A(C,T, L)A 2
ON PVU2417A(C,T, L)A 2 1/8
ON PVUEO14A(C,T,L)A 2- 1/2 1/8
ON PVUEO17A(C,T,L)A 2- 1/2 1/8
CNPVU3117A(C,T,L)A 2- 1/2 1/8
ON PVU3617A(C,T, L)A 3 1/8
ON PVU3621A(C,T, L)A 3 1/8
ON PVU37171A(C,T, L)A 3 1/8
ON PVU4221A(C,T,L)A 3- 1/2 1/8
ON PVU4324A(C,T, L)A 3- 1/2 1/8
ON PVU4821A(C,T,L)A 4 1/8
ON PVU4824A(C,T, L)A 4 1/8
ON PVU6024A(C,T, L)A 5 1/8
ON PVU6124A(C,T, L)A 5 1/8
TONNAGEMODEL NUMBER
CN RVU1814A(T,L)A 1- 1/2
CN RVU2414A(T, L)A 2
CN RVU2417A(T, L)A 2
ON RVUEO14A(T,L)A 2- 1/2
ON RVUEO17A(T,L)A 2- 1/2
ON RVU3617A(T, L)A 3
CN RVU3621A(T, L)A 3
ON RVU4221A(T,L)A 3- 1/2
ON RVU4821A(T, L)A 4
ON RVU4824A(T, L)A 4
ON RVU6024A(T, L)A 5
For the 1lth digit position inthe model number; C
Cased " N " [
Old CK5
Follow
procedure
3B
COIL SIZE
Depth
19- 1/8
19- 1/8
19- 1/8
19-
19-
19-
19-
19-
19-
19-
19-
19-
19-
19-
19-
19-
COIL SIZE (IN.)
Depth Width
19- 1/8 12- 1/4
19- 1/8 12- 5/16
19- 1/8 16- 7/8
19- 1/8 12- 5/16
19- 1/8 16- 7/8
19- 1/8 15- 5/8
19- 1/8 20- 1/4
19- 1/8 19
19- 1/8 19
19- 1/8 26- 3/4
19- 1/8 22- 5/8
Replacement
Applications
I
Applications
I
N-Coil
Plenum [
Applications
KitCasing
Applications
!
I
Uncased " A " [
Old CC5
m
Follow
procedure
3C
Fig. 2 - Uncased N- Coil Applications
Table 1 - CNPVU Uncased Coil Information
(IN.)
Width
13- 1/2
16- 3/4
13- 1/2
16- 7/8
16- 1/2
16- 7/8
16- 3/4
16- 7/8
20- 1/4
16- 3/4
20- 1/4
23- 3/4
20- 1/4
23- 3/4
23- 3/4
23- 3/4
Table 2 - CNRVU Uncased Coil Information
= standard copper, L = Aluminum and T = tin- plated copper
I
I
COLLAR SIZE (IN.)
Depth Width
19- 3/8 12- 7/8
19- 3/8 16- 1/4
19- 3/8 12- 7/8
19- 6/8 16- 1/4
19- 3/8 12- 7/8
19- 6/8 16- 1/4
19- 6/8 16- 1/4
19- 6/8 16- 1/4
19- 3/8 19- 5/8
19- 3/8 16- 1/4
19- 3/8 19- 5/8
19- 3/8 23- 1/8
19- 3/8 19- 5/
19- 3/8 23- 1/8
19- 3/8 26- 1/8
19- 3/8 26- 1/8
COLLAR SIZE (IN.)
Depth Width
19- 3/8 12- 1/2
19- 3/8 12- 9/16
19- 3/8 16- 1/4
19- 6/8 12- 5/8
19- 6/8 16- 1/4
19- 3/8 15- 15/16
19- 3/8 19- 5/8
19- 3/8 19- 5/16
19- 3/8 19- 5/16
19- 3/8 23- 1/8
19- 3/8 22- 7/8
i
procedure
Follow 1
3D
New
1
Plenum
Applications
procedure
l o,,owl
3E
COIL CONNECTION
TUBE SIZE (IN.)
Liquid Suction
3/8 5/8
3/8 3/4
3/8 5/8
3/8 5/8
3/8 3/4
3/8 3/4
3/8 3/4
3/8 3/4
3/8 3/4
3/8 7/8
3/8 7/8
3/8 7/8
3/8 7/8
3/8 7/8
3/8 7/8
3/8 7/8
COIL CONNECTION
TUBE SIZE (IN.)
Liquid Suction
3/8 5/8
3/8 5/8
3/8 5/8
3/8 3/4
3/8 3/4
3/8 3/4
3/8 3/4
3/8 7/8
3/8 7/8
3/8 7/8
3/8 7/8
KIT CASING
Model #
KCAKC2601ECC
KCAKCEOOl ECC
KCAKC2601ECC
KCAKC2701ECC
KCAKC2601ECC
KCAKC2701ECC
KCAKC3101ECC
KCAKC2701ECC
KCAKC2801ECC
KCAKC3201ECC
KCAKC2801ECC
KCAKC3301ECC
KCAKC2801ECC
KCAKC2901ECC
KCAKC2901ECC
KCAKC3401ECC
KIT CASING
Model #
KCAKC2601ECC
KCAKC2601ECC
KCAKC2701ECC
KCAKC2601ECC
KCAKC2701ECC
KCAKC2701ECC
KCAKC2801ECC
KCAKC2801ECC
KCAKC2801ECC
KCAKC2901ECC
KCAKC2901ECC
A06363
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