NORDYNE Air Handler (indoor Blower&evap) Manual L0611479

User Manual: NORDYNE NORDYNE Air Handler (indoor blower&evap) Manual NORDYNE Air Handler (indoor blower&evap) Owner's Manual, NORDYNE Air Handler (indoor blower&evap) installation guides

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Split System Indoor Coils

CAUTION:
Read the installation instructions
supplied with the furnace/air
handier and observe all safety requirements
outlined in the instructions and/or furnace/air
handier markings before proceeding
with the installation of the coil.

These instructions are primarily intended to assist qualified individuals
experienced in the proper installation of this appliance. Some local and
national codes require licensed installation/service personnel for this
type of equipment. Read all instructions carefully before starting the
installation.

Table of Contents
1. General information

...............................................................................................................

.................................................................................................................

3. Coil Installation .......................................................................................................................

2. Coil Specifications

, Upflow Furnace/Air Handler
• Downflow Electric Furnace
Downflow Electric Furnace/Air
4, Refrigerant
5, Restrictor

Line Connections
Change=Out

Handler with Integral Coil Cabinet or Optional Coil Cabinet
...............................................................................................

...........................................................................................................

6, Completing the installation
...................................................................................................
Condensate Drain
Air Filters
Close-off Plates and Panels
Refrigerant
7, Maintenance

6
7
7

Charging
and Service

......................................................................................................

1. GENERAL

iNFORMATiON

C(*)QA/DA coils are designed for upflow and
downflow furnace/air handler applications. The
C(*)QA coils incorporate "single shot" coupling
refrigerant connections for easy installation. The
C(*)DA coils are furnished with down-turned
refrigerant connections, ready for brazing.

Read the installation manual supplied with the
outdoor unit for refrigerant line connection procedure, required line sizes, and other information
pertaining to the system installation.
1.

6.
7.

tubing connections

Make certain that the air delivery of the
furnace/air handler is adequate to handle
the static pressure drop of the coil, filter, and
duct work.

In orifice style models check the orifice size
of the coil's expansion device and confirm
that it is suitable for application with the
intended outdoor unit.

Where precise forming of the refrigerant
lines is required, a copper tubing bender
designed for the size lines used is recom-

mended. Avoid sharp bends and contact of
the refrigerant lines with metal surfaces.
Refrigerant
lines should be wrapped
with pressure sensitive neoprene or other
suitable material where they pass through
the raw edges of holes.
The coil enclosure (if provided) and suction
line must be insulated as needed to prevent
condensate
from forming and causing
property damage.
Coil must be level for proper condensate drainage.
Do not remove seals from the coil until the
are ready to be made.

NOTE: Optional cooling/heating equipment must
be properly sized and installed in accordance
with the furnace manufacturer's specifications
and approved recommendations. "Heating only"
furnace air circulators may have to be replaced
with multi-speed "Heating/Cooling"
blowers to
upgrade the air delivery (CFM) when an add-on
coil is installed. Refer to Coil Specifications for
recommended CFM and allow for pressure drop
across the coil and filters.

2. COIL SPECIFICATIONS
CS(D,Q)A
Nominal (2)
Capacity BTUH
Nominal Airflow
CFM

24,000 30,000 36,000 36,000 42,000 42,000 48,000 48,000 48,000 60,000
800

1000

1200

1400

1600

2000

Width (in.)

18 1/8

Height (in.)

20
19 1/2

24
19 1/2

20
19 1/2

24
19 1/2

28
19 1/2

Depth

T25

(in.)

T30

T36

T37

Connections
Liquid

T41

T43

T47

I
Line I

3/8

Suction Line

3/4

TXV

3/4

TXV '1 TXV

TXV

048

055

36,000

47,000

48,000

54,000

1,200

1,400

1,500

1,600

Width (in.) W

18 1/8

181/8

Height (in.) H

24 1/4

Depth (in.) D

19 1/2

191/2

Capacity BTUH
Nominam Airflow
CFM

T60

3/8

047

C3(D,Q)A
Nominam (2)

036

3/4

T49

I
3/8

Meter ng Dev ce

T48

3/4

TXV i TXV

3/4

TXV

Refer to sales specification sheets
for Listed/Certified combinations
of equipment and required accessories.
Refer to the current ARI Directory for certified
systems.

ratings of split

Connections
Liquid Line

3/8

Suction Line

3/4

0.080

0.082

0.093

N/A

Installed Orifice
Size (in.)

0.067
0.060

Extra Orifice
(in,) supplied

(use for 024)

0.075

0.063

(use for 042)

(use for 030)
m

3. COiL iNSTALLATiON

Downflow

z WARNING:

Ensure that all electrical
furnace is off.

Use the appropriate Coil Conversion Kit
which includes 2 air filters, close-off plates
(2 sets) and a coil hold down bracket.
Remove the filter located at the top of the
furnace cabinet.
Remove the refrigerant line knockouts located at the top and bottom of the furnace
cabinet.
Install the coil and level it as needed to

1.
2.

3.
4.

Disconnect
all electrical
power
to
the furnace.
Install the coil in the coil cabinet and level

it as needed to allow proper condensate
drainage or make a plenum to enclose the
coil or drop the duct directly over it.
Seal the enclosure as required to minimize
air leakage.
Connect the refrigerant lines as outlined
in the Refrigerant Lines section.

Furnace:

Electric furnaces may be connected to
more than one supply circuit.
Upflow Furnace:

FE/E* Electric

6.
7.
8.
9.

power

ensure proper condensate drainage.
Secure the coil hold down bracket with
screws.
Add air filters to the sides of the coil.
Cut the floor opening for the refrigerant lines
and drain line (See Figure 6).
Connect the refrigerant lines as outlined in
the Refrigerant Line Connection section.
Connect the drain line and ensure that there
is a water trap in the water line.

Supply Duct

[ i]
Coil Cabinet

Refrigerant
Lines to Outdoor
Condensing Unit

Multi-Speed
Heating/Cooling
Blower

Drain Line
to Suitable Drain
"_i_Upf]ow
\

Side er Bottom Return Duct

Figure

1. Upflow

to the

Furnace/Air

Handier

Furnace

AIR FILTERS (2)

CLOSE OFF
(SEEFIGURE4
REMOVE FILTER
MULTI-SPEED
"HEATINGtCOOLING"
BLOWER
DOWNFLOW
ELECTRIC
FURNACE

FLOOR
CUT-OUT
(SEE FIGURE 5)

CLOSEOFF
PLATES
(SEE FIGURE 3)

EFRIGERANT
LINES TO

DRAIN LINE TO "J
SUITABLE

OUTDOOR
CONDENSING
UNIT

DRAIN

Figure 2. Downflow

Furnace

without

Coil Cabinet

SMALL
PLATE
SMA

_
LARGE/_

PLATE
-MOUNTING

PLATE

TABS

OFFSET

_::_"_'
.....

J__

_
_k

MOUNTING
HOLES(2)

TABS

HOLE

Figure 3. Bottom

Close=Off

Downflow
Furnace
with
Cabinet or Optional Cabinet

Plates

Integral

Figure 4. Close-Off Plates for Opening
Top of Furnace
Coil

Ensure that all electrical power to the furnace
is off.

On the optional cabinet, refer to its installation instructions for assembly details.
Remove the knockout in the left bottom cor-

ner of the furnace and cut an appropriately
sized hole in the floor. See Figure 6.
Remove the interior coil panel. Install the
coil and level it as needed to ensure proper
condensate drainage.
Remove the knockout for the refrigerant lines in the secondary
covers and
replace in the furnace.
NOTE: Modifications to the panel may be
required.
Slide the close-off plates around the refrigerant lines and install with the dart clips
provided. See Figure 5.

\
Figure 5. Exploded View for
Close=Off Plates
m

7.
8.

Snap the bushings around the lines and into
the close-off panels.
Connect the refrigerant lines as outlined in
the refrigerant lines section.

REAR WALL (CLOSET OR ALCOVE)

20" (508 mm)

4. REFRIGERANT
CONNECTIONS

LINE

-fl

19 1/16"
(500 ram)

:]:]
Z

Floor Cut Out

for Refrigerant Lines
and Drain Hose

CAUTION:

O
-_
r'-

_
[11

in orifice style coils before proceeding
with the connection of the refrigerant
lines, confirm that the orifice
size

33/4,,

(95 mm)

meets the requirements
outlined
in the
outdoor
unit installation
manual.

4 1/2" (114 mm) MAX l
5 3/8"

Factory installed orifice sizes are listed in the
Specifications section. If the restrictor orifice
must be replaced, see Section 5, Restrictor
Change=Out.
1.
2.

3.
4.

(133 mm)

Figure 6. Location of Floor Cut-Out for
Refrigerant Lines and Drain Line
OFFSET

Remove the protective caps from the coil
and refrigerant line set couplings.
With a soft, dust-free cloth, carefully wipe
clean all coupling threads and seals to
remove any dust or material which could
contaminate the refrigerant system.
Using refrigerant oil, lightly lubricate the
diaphragm, seal, and mating threads.
Connect
the couplings
as follows:
a.) Line up the refrigerant line with the coil
coupling and thread together by hand to
ensure proper thread mating. Hold the hex

OUNTING
OLE
PLATE

DOWNFLOW
FURNACE

COIL CABINET
COVER OR PANELS

CLOSE-OFF
PLATES
(SEE FIGURE

SUPPLY

0 UCT -4'{)

REFRIGERANT

DRAIN LINE TO
SUITABLE DRAIN

Figure 7. Downflow
m6

TABS

Figure 8. Close-Off Plates (Supplied with
appropriate
blower conversion package)

MULTI-SPEED
"HEATING/COOLING"
BLOWER

FLOOR
CUT'OU

3/4" (19 mm)/
Furnace Outer Door

LINES TO OUTDOOR
CONDENSING
UNIT

Furnace

with Coil Cabinet

of the male coupling with a wrench and
slowly wrench tighten the union nut until a
definite resistance (bottoming out) is felt.
b.) Mark the position of the union nut (match
lines on the line coupling and the coil coupling), then tighten the coupling an additional
1/4 turn to ensure a leakproof connection.
Use the Torque Values table (below) if a
torque wrench is used.
On C(*)D coils with TXV where brazing is
required to make the line connection it is
required to wrap a wet rag around the suction tube between the sensing bulb and the
joint being brazed to avoid damage to the
bulb.
Check the system for leaks.

5. RESTRICTOR

Figure g. Wrenches on
Distributor Body and Assembly

Nut

CHANGE=OUT

NOTE: If the orifice must be replaced, follow
these steps.
1. Connect only the suction line coupling to
the coil as indicated in Section 4.
2.

Reclaim the holding charge from the coil
and suction vapor line through the schraeder
port using the methods approved under
the Refrigerant Transition and Recovery
Certification Program.
Open the distributor body by using open
end wrenches and turning the swivel nut
(smallerwrench) counterclockwise. Remove
the restrictor, being careful not to scratch the
bore or the distributor body (See Figures 9
and 10).
Select the proper size restrictor and place
it rounded end down into the distributor

Figure

10. Removal

of Orifice

..... J

body (See Figure 11).
Realign the swivel nut and distributor. Start
the threads by hand then continue to tighten
with the wrenches until a resistance is felt.

Figure 11. Restrictor
Insertion in Distributor
Body

Match the position of the nut and then tighten
an additional 1/4 turn. If a torque wrench is
used, tighten the nut with the values for the
3/8" line.

Evacuate the system through the schraeder
port on the vapor line.

6. COMPLETING THE INSTALLATION

Torque

Values

Coupling Size
3/8" (10 mm)
Liquid Line Coupling

Torque
10 - 12 ft. Ibs.
14 - 16 Nm

3/4" (19 mm) or

34 - 45 ft. Ibs.

7/8" (22 ram)

46 - 61 Nm

Vapor Line Coupling

Connect the liquid line as instructed in Section 4. Check the connections for leaks.

CAUTION'.
The indoor coil must be checked to
ensure a level installation. Failure to do
so may result in improper condensate
disposal, causing structural
damage,
premature equipment failure, or possible personal injury.

Condensate Drain:
1. Thread the 3/4" drain fitting (included) into
the lowest tapped hole on the condensate
pan. Hand tighten the fitting. If a different
configuration is required, use only PVC or
similar material for the fitting.
NOTE: Overtightening the fitting may crack
the drain pan and create a condensate
leak.
2. Slip the drain line over the end of the fitting,
add the clamp provided and run to a suitable drain. Avoid bending or pinching of the
line.
3.

During the system checkout, inspect the
drain line and connections to verify proper
condensate disposal.

Air Filter -- Air filters are not provided as an
integral part of this coil, however, a filter must
be installed upstream of the coil and inspected
frequently. When the filter becomes clogged
with dust or lint, it should be replaced (disposable type) or cleaned (washable type).The filter
should be inspected and replaced or cleaned at
least twice during the year, generally at the start
of each heating and cooling season.
Close=Off Plates and Panels--

Ensure that all electrical power to the
furnace and outdoor (condensing)
unit
is off before performing
any maintenance or service
on the system.
It will be necessary to evacuate the indoor coil
and line set prior to charging. Refer to the outdoor
unit installation manual for detailed charging
instructions.

7. MAINTENANCE

AND SERVICE

To ensure optimum system performance and
to minimize the possibility of equipment failure,
the following periodic maintenance should be
performed on the coil:
1.

The air filter installed with the system should
be checked and cleaned or replaced twice
per year.
Check the coil, drain pan, and condensate
drain line for cleanliness at the start of each
heating and cooling season. Clean
remove any debris as required.

and

Install the nec-

essary air close-off plates around the refrigerant
lines and drain line where required. Reinstall
all inner and outer panels of the furnace/air
handler that were previously removed to install
the indoor coil.
Refrigerant
Charging -- C(*)Q series indoor
coils contain a "holding charge" to prevent
entrance of moisture and contaminants during
shipment. The total system operating charge
of R-22 refrigerant is in the outdoor unit and is
adequate for the matched listed system including
15 feet of line set.

WARNING:

CAUTION:
Do not operate the system without having a suitable filter in place in the return
air duct system. Always replace the
filter with the same size and type.

INSTALLER: PLEASE LEAVE THESE INSTALLATION
INSTRUCTIONS WITH THE HOMEOWNER

APPLIES ONLY WHEN
THE COMPLETE
CERTIFICATION
SYSTEM
IS LISTED
WITH ARI

7086350
7086350 (Replaces 7084890)

O'Fallon, MO

NORDYNE

Specifications and illustrations subject to change
without notice and without incurring obligations.
Printed in U.S.A. (09/06)

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NORDYNE Air Handler (indoor Blower&evap) Manual L0611479

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