CARRIER Evaporator Coils Manual L0211037

User Manual: CARRIER CARRIER Evaporator Coils Manual CARRIER Evaporator Coils Owner's Manual, CARRIER Evaporator Coils installation guides

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Installation Instructions

For Cased Coils

Upflow-Downflow

Heating-Cooling

CK5A,CK5B

CK5P

SUPPLY

EVAPORATOR_ -'_41

COIL_

UPFLOW

FURNACE

_RETURN

_SUPPLY

DOWNFLOW

FURNACE

Fig. 1--Typical Coil Installation

NOTE: Read the entire instruction manual before starting the installation.

This symbol --_ indicates a change since the last issue.

A_2_

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 A,, • 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, and CAUTION. 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 would 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.

WARNING: Before installing or servicing system, always turn off main power to system. There may be more than 1

disconnect switch. Turn off accessory heater power if applicable. Electrical shock can cause personal injury or death.

Z_x CAUTION: 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.

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.

Form: IM-CK5A-05 Cancels: IM-CK5A-04 Pdnted in U.S.A. 12-01 Catalog No. 63CK-5A4

Table 1---CK5A/CK5B/CK5P Dimensions

MODEL NUMBER

*CK_A,B,P)XA018014

*CKS(A,B,P)XA024014

*CKS(A,BJ')XA030014

*CK5(A,B,P)XT036017

CKS(A,B,P)XW024017

CK5(A,B,P)XW030017

*CKS(A,B,PiXA036017

CKS(A,B,P)XE042017

*CKE(A,B,P)XT04202 I

*CKS(A,B,P)XT048021

CKS(A,B..P)XW036021

*CKS(A,B.PlXA042021

*CKS(A,B,P)XA048021

*C KS(A,B,P)XT060024

_CKS(A,B_P)XW048024

*CKS(A,B,PlXA060024

CKS(A,B,P)XX060024

TONNAGE

1_1/2

2-1_

2-1/2

3-1/2

METERING DEVICE

CK5A/B CK5P

Piston NUMBER TXV NUMBER

52 EA36YDI24

59 EA36YDI24

67 EA36YDI34

70 EA36YD144

59 EA36YDI24

67 EA36YDI34

70 EA36YDI44

78 EA36YDI44

84 EA36YDI54

70 EA36YDI44

78 EA36YDI44

84 EA36YDI54

90 EA36YDI54

84 EA36YDI54

90 EA36YDI54

FLUSH FIT

TO FURNACE

WIDTH (IN.)

14-3/16

17-1/2-

17-1/2

1%1/2

24-1/2

SHELF WIDTH

(SEE FIG. 3,

DIM A)

12-7/8

16-3/16

1%5/8

23-1/8

FITS NEXT SMALLER FURNACE

Equal Overhang Offset

with

Overhang Transition Left

X -- __

-- X X

X -- __

-- X X

X-- --

-- X X

INTRODUCTION

Use this instruction manual to install indoor coils on upflow or downflow furnaces. (See Fig. 1.) Do not install coil in horizontal position. Model

CK5A is enclosed in a painted casing while CK5B is available in an embossed casing; both of these coils come with pistons and both may be used

with R-22 systems or Puron®. The CKAP coil is enclosed in a painted casing, however, it has a Puron TXV so it is only compatible with Puron

systems.

INSTALLATION

PROCEDURE 1--INSPECT EQUIPMENT

File claim with shipper if equipment is damaged.

PROCEDURE 2---SELECT INSTALLATION PROCEDURE

NOTE: Installing coils rotated 90 degrees from the front of the furnace, in upflow or downflow applicadous, can cause water blow-off or coil

freeze-up due to the concentration of air on one slab of the ceil or lack of air to a slab in the coil. It is recommended that on this type of application,

a field-supplied adapter be placed between the coil and furnace to allow air to distribute properly between all slabs of the coil.

For cased coils in upflow applications, follow A. See Table I for dimensions and overhang options. Note instructions for placement of ceil casing

on fitrnace.

For cased coils in downflow applications, follow B.

For uncased coils in upflow applications, follow C.

PROCEDURE 3_INSTALLATION OF FURNACE COILS

A. Upflow Cased Coil Installation

1. Set coil in place on upflow furnace discharge air opening. (See Fig. 1.)

2. When coil front width matches furnace front width, die ceil can be placed direcdy on furnace.

NOTE: When model T036, T042, T048, or T060 is applied to same width furnace, remove block-off plates at casing base by removing 2 screws

per plate from side of casing. (See Fig. 8.)

3. Ensure coil is level for proper condensate drainage. Do not tip coil toward condensate drain. Coil enclosure need not be fastened or screwed

to furnace.

4. Following are instructions for alternative ways of overhanging coil on furnace: (See Fig. 7A, B, C.)

T MODEL (6TH DIGIT) COILS APPLIED CENTERED OVER NARROW FURNACE

1. There is no transition required for this application.

2. Remove coil from packaging and place on top of furnace with 1-5/8 in. overhang on both sides. (See Fig. 7A.)

3. Continue with normal installation practices. (See Procedure 4.)

A, W, OR X MODEL (6TH DIGIT) COIL APPLIED CENTERED OVER NARROW FURNACE WITH 2-1/4-1N. MINIMUM TRANSITION

1. Prepare transition, following recommended transition drawing. (See Fig. 5.) Fabricate a 2-1/4-in. tall (minimum) transition.

2. Place transition on top of gas furnace. (See Fig. 7B.) Secure with sheet metal screws. Place cell on top of transition. Make sure coil rests

evenly on top of transition and gas furnace.

3. Secure ceil to transition using sheet metal screws.

--2

193/16 "

__ /_i'_ __ F__EELDuSMuPPLIED

COIL

SUPPORT

[\\

3" MIN. _/

FURNACE _ "B" I

TABLE 1

_'-FURNACE

A01482

Fig. 2iTransition Required for Overhang

Except for "T" Coils (See Fig. 7)

A01_3

Fig. 3---Correct Orientation of Coil Suppo_ on Furnace

CAUTION

AIR CONDITIONING COIL BEHIND THIS

PANEL.DO NOT DRILL OR CUT PANEL

UNTILCOIL LOCATION HAS BEEN

VERIFIED BY REMOVING ACCESS

COVER.

A96359

Fig. 4---Plenum Caution Label

4. Continue with normal installation practices. (See Procedure4.)

NOTE: If cod (cased or uncased) is not being instaned in the standard orientation (front of coil matching front of furnace) then coil must be raised

2-I/4 in. above furnace.

A, W, OR X MODEL (6TH DIGIT) COIL APPLIED DIRECTLY ON TOP AND OFFSET TO THE LEFT ON NARROW FURNACE

1. Notch support rail on underside of coil cabinet to provide clearances for gas furnace flange. This rail is not visible from front of coil. To

locate position of notch, place coil directly on top of gas furnace with overhanging portion entirely on left side as in Fig. 7C. Mark location

of gas inmace flange on coil casing. Remove coil from top of furnace. Using tin snips, make a notch in rail large enough to allow clearance

for gas flow furnace flange.

2. Place coil on top of gas furnace. Make sure coil is shifted completely to left side, and notch is sufficient so coil rests on top of furnace

cabinet.

3. Prepare and install block-off plate. (See Fig. 7C.) Using field-supplied sheet metal, cut a block-off plate to be attached to bottom left side

of coil casing. This plate prevents air leakage from overhanging portion of coil. Attach plate using sheet metal screws.

4. Continue with normal installation practices. (See Procedure 4.)

B. Downflow Cased Coil Installation

1. Place N-coil on supply duct opening.

2. When coil width matches furnace width, furnace can be placed directly on the cased coil.

NOTI:: In' downflow installation with a 4-way multipoise furnace, break off perforated duct flanges on furnace. (See Furnace Installation

Instructions.)

3. Coils that underhang (narrower than furnace) must have a 2-l/4-in. long (minimum) field-fabricated Iransition between furnace and N-coil

casing.

4. Coils that overhang (wider than furnace) do not require a a'ansition in downflow application. However, a field-supplied furnace shelf should

be constructed to fit furnace to coil opening.

5. Place furnace on top of N-coil casing, or field-supplied furnace shelf.

NOTE: When removing a coil from its casing in the downflow position, support the coil enclosure with field supplied bracing. (See Fig. 6.)

I3I

COIL CASINO WIDTH

REAR BRACKET

19 I_-

(OUTSIDE)

3/4_

FLANGES

SHOWN)

NOTE: WELD (3) PLACES

IN (41 CORNERS

(INSIDE OPENING)

FURNACE OUTLET

12-3/4

16-U16

19-9116

Dimensions (In.)

Fig, 5_Recommended Transition

A97232

17-1/2

24-1/2

C. Upflow Uncased Coil Installation

Only the coils marked with an asterisk (*) on Table 1 can be used as an uncased application. In these models the coil can be removed from the

casing and installed as an uncased coil without need to field-fabricate a coil enclosure to prevent air bypass.

1. Field fabricate coil support shelf using dimensions given in Fig. 3. The coil support shelf is required to complete the uncased installation.

2. Locate and install the coil support shelf above furnace duct flanges, the coil support shelf is designed to accommodate upflow furnace

opening flanges.

3. Set coil in place.

4. Place plenum enclosure on furnace.

5. Insulate plenum enclosure.

6. Affix caution label to the right side of plenum enclosure. (See Fig. 4.) The caution label is stapled to the Installation Instructions.

7. Continue with normal installation practices. (See Procedure 4.)

PROCEDURE 4---CONNECT REFRIGERANT PIPING

Use accessory tubing package or field-supplied tubing of refrigerant grade. Suction tube must be insulated. Do not use damaged, dirty, or

contaminated tubing because it may plug refrigerant flow-control device. ALWAYS evacuate the coil and field-supplied tubing before opening

outdoor unit service valves.

PROCEDURE 5--CONNECT REFRIGERANT LIQUID AND SUCTION LINES

For matched and mismatched systems, use line sizes recommended in outdoor unit Installation Instructions.

The coil can be connected to outdoor units using accessory tubing packages or field-supplied tubing of refrigerant grade. Always evacuate tubing

and reclaim refrigerant when making connections or flaring tubing. Leak check connections before insulating entire suction line.

SUCTION LINE

Suction line is designed for field sweat connection. Line is plugged to keep out moisture and dirt. Remove these plugs only when ready to make

connection.

LIQUID LINE

CAUTION: To avoid damage to the refrigerant control device while brazing, wrap tubing or fittings with aheat-sinking

material such as a wet cloth.

A. The following section applies to only CK5A and CKSB coils:

SYSTEM REFRIGERANT CONTROL

z_x CAUTION: If unit is to be installed on system with a thermostatic expansion valve, removal of indoor coil piston is

required.

A refrigerant control device (bypass type piston) is factory supplied with coil. (See Table 1.) The piston has arefrigerant metering hole through

it, and is field replaceable.

FURNACE

2 1/4" MIN

Fig. 6--Field Supplied Bracing

FIE_ J

FABRICATED

BLOCK OFF

PLATE

m i m

ALTERNATIVE ALTERNATIVE ALTERNATIVE

A B C

MODELS: T036, T042,

T048, AND TO60 ONLY

Fig. 7--Alternative Coil Mounting Positions

WRONG

Ag83gt

A97607

The piston shipped with the indoor coil may be different from the piston shipped with the outdoor condensing unit. If this is the case, you must

replace the indoor piston. Always use the piston shipped with the outdoor condensing unit.

If piston replacement is required:

1. Check the piston size stamped into side of brass hex nut. (See Fig. 9.) If this piston number does not match required piston shown on outdoor

unit rating plate, replace indoor piston with piston shipped with outdoor unit.

2. When the piston is replaced, hand tighten the brass hex nut, then tighten with wrench 1/2 turn.

3. Remove rubber plug.

4. Li,qnid line is designed for sweat connection.

/f_ CAUTION: Remove Teflon seal during brazing. Replace when fitting has cooled.

PROCEDURE 6--CONDENSATE DRAIN UNE CONNECTION

The coil is designed to dispose of accumulated water through built-in condensate drain fittings. Two 3/4-in. female threaded pipe connections are

provided in each coil condensate pan.

Install a trap in condensate line for coil as close to coil as possible. Make trap at least 3 in. deep and no higher then the bottom of unit condensate

drain opening. (See Fig. 11.) Pitch condensate line 1 in. for every 10 ft of length to an open drain or sump.

m5m

PLATES

A97629

Fig. 8---Block-Off Plate Removal

NOTE: If unit is located in or above a riving space, where damage may result from condensate overflow, afield-supplied, external condensate

pan should be installed underneath entire unit, and a secondary condensate line (with appropriate trap) should be run from the unit into the pan.

Any condensate in this external condensate pan should be drained to a noticeable place. As an alternative to using an external condensate pan, some

localities may allow the atoning of a separate 3/4-in. condensate line (with appropriate trap) per local code to a place where the condensate will

be noticeable. The owner of the structure must be informed that when condensate flows from secondary drain or external condensate pan, the unit

requires servicing or water damage will occur.

NOTE: To avoid drainage problems, test the primary drain line by slowly pouring water into the pan. Check piping for leaks and proper

condensate drainage. Using the secondary drain as explained in the above note provides future protection against overflow due to a clogged primary

drain.

PROCEDURE 7--HUMIDIFIER APPLICATION

When installing a humidifier in a system which contains an N-Coil, consideration must be given to location of coil slabs. (See Fig. 12.)

I. Care must be taken to prevent damage of N-coil when attaching humidifier to coil casing or plenum•

2. The models makred with an * in Table 1 are shipped with a labet to be applied to plenum to indicate slab location• This is needed only in

cases where the humidifier is not installed with original equipment. Label will alert future service and installation technicians about coil

slab location.

3. Ensure that humidifier has adequate airflow.

PLUG_

13/16--IN•

_'- BRASS HEX /-- STRAINER

!NUT /PISTON ,-- DISTRIBUTOR

'J-- PISTON / /'-- ,/

• COPPER TUBE

STAMPED INTO HEX BODY

SIDE OF NUT A96248

Fig. 9---Refrigerant Control Device Components for CK5A and CK5B

PLUG

\D-

TXV

DISTRIBUTOR

Fig. 10_Refrigerant Control Device Components for CK5P

A01446

ENCLOSURE

DRAIN

3" MIN

TO OPEN DRAIN

OR SUMP

Fig. 11--Condensate Trap

A88571

--7--

Fig. 12_lnstallation of Humidifier in System with N-Coil

A9_01

O2001 CAC/BDP 7310 w. Morris St., Indianapolis, IN 46231 imckSa05 --8-- Catalog NO. 63CK-SA4

CARRIER Evaporator Coils Manual L0211037

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