Rheem RRKA-A Installation Manual

INSTALLATION AND OPERATING

INSTRUCTIONS FOR MODELS:

RCBA/RCGA/RCHA/RCGJ/RCHJ/RCHL

RXBC – INDOOR COIL CASING

92-20707-17-11

SUPERSEDES 92-20707-17-10

R C (–) (–) –36** A U 17 A OPT

2

TABLE OF CONTENTS

Model Number.....................................................................2

Unit Specifications............................................................3,4

Coil Application ...........................................................5, 6, 7

I. Inspection............................................................................8

II. General Information ............................................................8

Codes/Regulations..............................................................8

Replacement Parts..............................................................8

III. Installation...........................................................................8

Vertical Upflow/Downflow....................................................8

Horizontal............................................................................8

Refrigerant Connections .....................................................9

Flowcheck Pistons ..............................................................9

Condensate Drain Tubing...................................................9

IV. Maintenance........................................................................9

Air Filter.............................................................................10

Indoor Coil ........................................................................10

V. Accessories.......................................................................10

Internal Coupler Accessory ..............................................10

Plenum Adapter Accessory...............................................10

Horizontal Drain Pan Kit....................................................10

VARIATION

BLANK = NONE
M = REVISED HORIZONTAL
J = REVISED HORIZONTAL W/INSULATION

VARIATION

BLANK = NONE
A = FILTER/FILTER RACK
B = ADAPTERS (78% FURNACE)
X = IF UNIT HAS INSULATION

COIL CASING

14 = 14" 21 = 21"
17 = 17

1

⁄2" 24 = 241⁄2"

CABINET WIDTH

14 = 14" 21 = 21"
17 = 17-1/2" 24 = 24-1/2"

AIRFLOW/REFRIGERANT CONNECTION

“A” CONNECTION U = UPFLOW, DOWNFLOW - LEFT (STD)

D = UPFLOW, DOWNFLOW - RIGHT
L = HORIZONTAL (LEFT) - TOP
R = HORIZONTAL (RIGHT) - TOP
S = UPFLOW/DOWNFLOW - LEFT OR RIGHT

“G” CONNECTION G = UPFLOW/DOWNFLOW/FRONT

H = HORIZONTAL - (LEFT)/FRONT
Z = HORIZONTAL - (RIGHT)/FRONT

CONNECTION (REFRIGERANT)

A = SIDE
G = FRONT

METERING DEVICE (CODE)

**

= TX VALVE OR FLOWCHECK SIZE

TX VALVE (e.g. A1)
FLOWCHECK (e.g. 99 FOR .099
PISTON SIZE)

NOMINAL CAPACITY

24 = 18,000 TO 24,000 BTUH
36/37 = 30,000 TO 36,000 BTUH
48 = 42,000 TO 48,000 BTUH
60 = 60,000 BTUH
(ACTUAL CAPACITY IS DEPENDENT UPON
METERING DEVICE AND SYSTEM
COMBINATION. SEE OUTDOOR UNIT
INSTRUCTIONS FOR SPECIFICATIONS.)

DESIGN SERIES

A = 1ST DESIGN
J = 14 SEER SYSTEM (1ST DESIGN)

DESIGN SERIES

A = SIDE CONNECTION
C = FRONT CONNECTION

TYPE OF COIL

B = FLOWCHECK (COOLING/HEAT PUMP)
G = EXPANSION VALVE (COOLING ONLY)
H = EXPANSION VALVE (HEAT PUMP ONLY)

COIL

TRADE NAME

TRADE NAME

ACCESSORY

BLOWER UNIT

COIL CASING

RXBC - INDOOR COIL CASING

RCBA - CASED OR UNCASED INDOOR COILS

R X B C –A14

*NOTE!! UNCASED COIL MODEL NUMBERS END AFTER 10TH POSITION (REF. ASTERISK)

RCGA COILS

COIL TXV TXV PISTON
SIZE CODE SIZE SIZE

24 A1 1 1/2 .099
24 A2 2 .120
37 A1 2 1/2 .140
36 A2 3 .157
48 A1 3 1/2 & 4 .157
60 A1 5 .172

RCHA COILS

24 A1 1 1/2 .099
24 A2 2 .120
36 A1 2 1/2 & 3 .157
48 A1 3 1/2 & 4 .157
60 A1 5 .172

RCGJ COILS

24 A1 1 1/2 .099
24 A2 2 .120
36 A1 2 1/2 .120
36 A2 3 .140
48 A1 3 1/2 .140
60 A1 4 & 5 .157
60 A2 5 .172

RCHJ COILS

24 A1 1-1/2 0.099
24 A2 2 0.120
36 A1 2-1/2 0.140
36 A2 3 0.140
48 A1 4 0.140
48 A2 4 .157
60 A1 5 .172
51 A1 COIL A = 3 0.120

COIL B = 1.5 0.086

61 A1 COIL A = 4 0.140

COIL B = 1.5 0.086

RCHL COILS

24 A2 1-1/2 & 2 0.099
36 A1 2 0.099
36 A2 3 0.120
48 A1 3 0.120
48 A2 3 0.120
60 A1 4 0.140

CONNECTION SIZE (in.) UNIT WEIGHT (lbs)

MODEL UNCASED STANDARD

SWEAT

UNCASED STANDARD CASED COIL WITH

NUMBER COIL CASED COIL COIL CASED COIL HORIZ. DRAIN PAN

“X” in. “W” in. LIQUID I.D. SUCTION I.D.

WT. SHIP WT. WT. SHIP WT. WT. SHIP WT.
RCBA-24 12-1/4 14 15 17 32 34 37 39
RCGA-24 12-1/4 14 16 18 35 37 38 40

RCHA-24 3/4
RCBA-36 15-3/4 17-1/2 20 22 39 41 44 47
RCGA-36/37 15-3/4 17-1/2 21 23 40 42 45 48

RCGJ-24A2
RCGJ-24A1
RCHA-36 3/8
RCHJ-24A1
RCHJ-24A2
RCHL-24A2

RCBA-48 19-1/4 21 26 29 46 49 52 55
RCGA-48 19-1/4 21 27 30 47 50 53 56

RCGJ-36A1
RCGJ-36A2
RCHA-48
RCHJ-36A1
RCHJ-36A2 7/8
RCHL-36A1
RCHL-36A2

RCBA-60 22-3/4 24-1/2 32 35 54 57 60 64
RCGA-60 22-3/4 24-1/2 33 36 55 58 61 65

RCGJ-48A1
RCHJ-48A1
RCHL-48A1
RCHL-48A2
RCGJ-60A2
RCHJ-48A2
RCHJ-60A1
RCGJ-60A1
RCHA-60
RCHL-60A1

RCGJ-61A1
RCHJ-51A1 N/A 24-1/2 N/A N/A 110 116 122 130
RCHJ-61A1

MODEL WIDTH HEIGHT DEPTH UNIT WEIGHT SUPPLY➀ RETURN ➁

NUMBER “W” in. in. in. WT. SHIP WT. WIDTH" DEPTH" WIDTH" DEPTH"

RXBC-*14 14 17 19 13 13
RXBC-*17 17-1/2 17-1/2 22 19 21 16-1/2 16-1/2
RXBC-*21 21 20 23 20

19-5/8

20

19-7/8

RXBC-*24 24-1/2 22 25 23-1/2 23-1/2

3

UNIT DIMENSIONS & WEIGHTS — CASED AND UNCASED COILS

➀ Supply dimensions for upflow & horizontal units. This is return dimensions for downflow units.
➁ Return dimensions for upflow & horizontal units. This is supply dimensions for downflow units.

* A = Side Connection; C = Front Connection

UNIT DIMENSIONS & WEIGHTS — RXBC INDOOR COIL CASINGS

IMPORTANT
ALL VERTICAL DRAIN CONNECTIONS

HAVE PLASTIC WEB COVERING
OPENING WHICH MUST BE KNOCKED
OUT BEFORE CONNECTION(S) ARE MADE.

4

RC*J 51A1 & 61A1 COILS

A069401

I153

241⁄2

0

35

17-1/2

22

VAPOR LINE CONNECTION
LIQUID LINE CONNECTION
AUXILIARY DRAIN CONNECTION

1/4” FEMALE PIPE THREAD (NPT)
PRIMARY DRAIN CONNECTION

3/4” FEMALE PIPE THREAD (NPT)

UNIT MAY BE INSTALLED
UPFLOW OR DOWNFLOW
AIR SUPPLY.

ALL OPENINGS
IN CASING
ARE KNOCKOUTS.

REFRIGERANT, &
DRAIN K.O.’S ARE
TYPICAL BOTH SIDES
OF CABINET

CAUTION
ALL VERTICAL DRAIN CONNECTIONS
HAVE PLASTIC WEB COVERING
OPENING, WHICH MUST BE KNOCKED
OUT BEFORE CONNECTION(S) ARE MADE

DIMENSION FROM BOTTOM

OF CASING (0) TO CENTER

OF KNOCKOUT (K.O.)

DIMENSION FROM BACK
OF CASING TO CENTER
OF KNOCKOUT (K.O.)

21-1/8 — 32-3/8
21-5/16 — 31-9/32
21-1/32 — 30

21-1/32 — 22-1/2
21-5/16 — 21-7/32
21-1/8 — 20-1/8

21-1/8 — 14-7/8
21-5/16 — 13-25/32
21-1/32 — 21-1/2

21-1/32 — 5
21-5/16 — 3-23/32
21-1/8 — 2-5/8

SEE UNIT DIMENSIONS & WEIGHT CHART

SHEET 3 FOR “W” & “X”

FLOWCHECK PISTON

1229⁄32

13

⁄16

9

⁄16

1113⁄16

“X”

21