Carrier Air Conditioner KSALA0201R22 User Manual

Low--Ambient  
Pressure Switch  
KSALA0201R22  
KSALA0301410  
Installation Instructions  
NOTE: Read the entire instruction manual before starting the  
DESCRIPTION AND USAGE  
installation.  
The low--ambient pressure switch kit is a long life pressure switch  
which turns the fan on and off as shown in Table 1. It is wired in  
series with black fan lead. Sleeve--bearing motors can be used  
with this control.  
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 products.  
Follow all safety codes. Installation must be in compliance with  
local and national building codes. Wear safety glasses, protective  
clothing, and work gloves. Have fire extinguisher available. Read  
these instructions thoroughly and follow all warnings or cautions  
included in literature and attached to the unit.  
INSTALLATION  
The pressure switch is mounted inside the outdoor unit cabinet by  
using adapter tube supplied. The adapter tee is mounted to liquid  
service valve and tube is routed through one of the knockout  
holes in unit cabinet. From inside cabinet, the flare nut is attached  
to extender tube. (See Fig. 1.) The pressure switch is wired in  
series with black or common fan lead.  
PROCEDURE 1—WIRING FOR ALL VOLTAGES OF  
COOLING UNITS  
Recognize safety information.  
For all voltages of cooling units, refer to Fig. 2 and wire  
low--ambient pressure switch as follows:  
This is the safety--alert symbol  
. When you see this symbol on  
1. Disconnect black fan lead from contactor and connect this  
lead to yellow or violet wire from low--ambient pressure  
switch using connector supplied.  
the unit and in instructions or manuals, be alert to the potential  
for personal injury.  
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 a hazard, 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.  
2. Connect blue wire from low--ambient pressure switch to  
contactor terminal from which black fan lead was  
removed.  
PROCEDURE 2—WIRING FOR HEAT PUMPS  
Heat pumps require a normally closed isolation relay with the  
24--v coil connected to the C and O terminals of defrost board.  
A. 208/230v Applications  
For 208/230--v heat pump applications, refer to Fig. 3 and wire  
low--ambient pressure switch as follows:  
!
WARNING  
1. Remove black fan lead from defrost board terminal OF2  
and reconnect it to NC terminal of isolation relay. Connect  
yellow or violet lead from low--ambient pressure switch to  
same NC terminal of isolation relay.  
2. Connect a wire from the other NC terminal of isolation  
relay to OF2 terminal of defrost board. Connect blue lead  
from low--ambient pressure switch to same NC terminal of  
isolation relay.  
ELECTRICAL SHOCK HAZARD  
Failure to follow this warning could result in personal  
injury or death.  
Before beginning any installation or modification, be sure  
the main electrical disconnect is in the OFF position. Tag  
the disconnect switch with a suitable warning label.  
B. 460v Applications  
For 460--v heat pump applications, refer to Fig. 4 and wire  
low--ambient pressure switch as follows:  
INTRODUCTION  
These instructions cover the installation of low--ambient pressure  
switch Part No. KSALA0201R22 and KSALA0301410 in all  
single--speed air conditioners or heat pumps using R--22 or  
R--410A. Refer to Table 1 for kit usage. This device is a long life  
pressure switch that maintains head pressure by turning the fan  
off and on. Other accessories may be required. Refer to the  
Required Changes for Cooling Units and Heat Pump Units  
section.  
1. Remove black fan lead from outdoor fan relay terminal  
number 3 and reconnect it to NC terminal of isolation  
relay. Connect yellow or violet lead from low--ambient  
pressure switch to same NC terminal of isolation relay.  
2. Connect a wire from outdoor fan relay terminal number 3  
to other NC terminal of isolation relay. Connect blue lead  
from low--ambient pressure switch to same NC terminal of  
isolation relay.  
1
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START--UP  
To start units equipped with the low--ambient pressure switch,  
perform the following steps:  
T
1. Turn power on to unit.  
2. Set thermostat below room temperature.  
TDR  
3. Wait for the unit to start. There may be a 5--minute delay  
in the thermostat or in the outdoor unit.  
4. Observe unit operation as described below.  
a. The fan will be off when compressor starts.  
C
b. At outdoor temperatures around 0_F, fan may not run  
at all.  
LPS  
c. At summer temperatures, fan will start after 10 to 30  
sec of compressor operation and may not turn off until  
thermostat is satisfied.  
LPS LOW-PRESSURE SWITCH  
CONTACTOR COIL  
TDR TIME DELAY RELAY  
C
d. At outdoor ambients between 80_F and 20_F, fan will  
T
RELAY COIL  
turn on and off to maintain pressure as shown in Table  
1.  
FACTORY WIRING  
FIELD WIRING  
A93165  
Fig. 5 Low Voltage Wiring for Winter Start Control  
3
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7
3
/
/
32  
x  
8
(5.56 x 9.53) SLOT  
4 REQ'D  
9
/
64  
(3.45) DIA HOLE  
2 REQ'D  
H
G
3
/
8
6 1  
(154.0)  
/
16  
(9.6)  
TYP  
J
1
/
2
(12.7)  
TYP  
SUPPORT  
MAT'L: 18 GA STEEL  
7
/
16  
C
(11.6)  
TYP  
E
A
1/2″  
(12.7)  
TYP  
9
/
64  
(3.45) DIA HOLE  
1 REQ'D  
K
7
B
/
16  
(11.6)  
TYP  
J
7
/
32  
(5.56) DIA HOLE  
3 REQ'D  
1
/
4
1
/
4
M
(6.3)  
TYP  
(6.3)  
TYP  
L
D
7
/
32  
x 2″  
BAFFLE  
(5.56 x 50.8) SLOT  
MAT'L: 20 GA STEEL  
SCREW  
10 REQ'D  
F
SUPPORT  
4 REQ'D  
OUTDOOR  
UNIT  
AA  
BAFFLE  
2 REQ'D  
BAFFLE ASSEMBLY  
A95444  
®
Fig. 6 Carrier WeatherMaker Units  
4
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5
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1
3
/ x / (5.56 x 9.53) SLOT  
4
8
4 REQ'D  
1
/ (3.45) DIA HOLE  
8
2 REQ'D  
H
3
/ ″  
8
5 5  
(151.5)  
/
16  
(9.6)  
1
/ (5.56) DIA HOLE 2 REQ'D  
4
J
G
1
/ ″  
2
(12.7)  
TYP  
SUPPORT  
MAT'L: 18 GA STEEL  
7
/
16  
C
(11.6)  
E
A
1/2″  
(12.7)  
1
/ (3.45) DIA HOLE  
8
1 REQ'D  
K
7
B
/
16  
(11.6)  
J
1
/ (5.56) DIA HOLE  
4
3 REQ'D  
1
3
/ ″  
6″  
(152.4)  
4
/ (9.6)  
8
(6.3)  
L
D
1
/ x 2″  
4
BAFFLE  
(5.56 x 50.8) SLOT  
MAT'L: 20 GA STEEL  
SCREW  
10 REQ'D  
F
SUPPORT  
4 REQ'D  
AA  
OUTDOOR  
UNIT  
BAFFLE  
2 REQ'D  
BAFFLE ASSEMBLY  
A95445  
®
Fig. 7 --- Bryant Reliant Units  
6
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3
1
7 7/ ″  
/
16  
/ (3.45) DIA  
8
8
(200.0)  
(4.6)  
2 REQ'D  
F
5 3  
(128.0)  
/
64  
E
C
C
1
/ ″  
2
E
1
/ ″  
4
(12.7)  
(6.4)  
5 3  
/
64  
(128.0)  
13  
/
64  
1
/ ″  
2
(5.4)  
TYP  
7 29  
/
32  
(200.8)  
B
7 7/ ″  
(199.9)  
8
(12.7)  
TYP  
BAFFLE - LEFT  
25  
/
64  
(10.0)  
1 21  
/
32  
(42.1)  
MAT'L: 20 GA STEEL  
BAFFLE - RIGHT  
MAT'L: 20 GA STEEL  
D
2 1/ ″  
(63.5)  
1
2
/ (5.56) DIA  
4
A
2 REQ'D  
2 1/ ″  
(63.5)  
1
3
A
2
/ x / (5.56 x 9.53) SLOT  
4
8
6 REQ'D  
D
1
/ (5.56) DIA  
4
4 REQ'D  
1 21  
/
32  
(42.1)  
G
(10.0)  
1
3
/ x / (5.56 x 9.53) SLOT  
4
8
25  
Ú
64  
6 REQ'D  
AA  
C
4 9  
/
(105.2)  
64  
23  
/
64  
LEFT  
SIDE  
RIGHT  
SIDE  
45¡  
TYP  
(9.2)  
J
2 5  
(52.6)  
/
64  
SCREW  
14 REQ'D  
1
/ (5.56) DIA  
4
4 57  
Ú
64  
2 REQ'D  
(124.2) TYP  
SUPPORT  
3 REQ'D  
1
OUTDOOR  
UNIT  
/ (12.7)  
2
8 5  
/
64  
(205.3)  
TYP  
1
TYP  
23  
/ ″  
4
/
64  
(9.2)  
(6.4)  
SUPPORT  
MAT'L: 18 GA STEEL  
1
BAFFLE ASSEMBLY  
/ (3.45) DIA.  
J H  
8
4 REQ'D  
A95446  
Fig. 8 --- Carrier / Bryant / Payne Cube Units with 3/8” Coil Tubing  
8
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9
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1″  
(25.4)  
C
1
5
/ ″  
5
/
2
16  
(134.2)  
D
(12.7)  
E
F
3
/ ″  
8
1
/ ″  
2
(10.3)  
(12.7)  
1
/4  
(6.35) x 1  
/
2(12.7) SLOT  
(2) REQ'D  
3
/ ″  
8
1
/ ″  
2
(10.3)  
(12.7)  
A
B
7
/
16  
(11.8)  
H
G
7
1
/
16  
/4  
(6.35) x 3  
/4(19.05) SLOT  
(11.8)  
(15) REQ'D  
WIND BAFFLE  
7
/
16  
(11.8)  
3
/ ″  
8
(10.3)  
1
/ ″  
2
(12.7)  
WIND BAFFLE  
1
/
8(3.45) DIA HOLE  
(3) REQ'D  
BAFFLE  
SUPPORT A  
SUPPORT A  
1″  
(25.4)  
BAFFLE  
SUPPORT B  
5
5
/
16  
(134.2)  
1
/4  
(6.35) x 1  
(2) REQ'D  
/2(12.7) SLOT  
3
/ ″  
8
1
AA  
/ ″  
2
(10.3)  
(12.7)  
7
/
16  
(11.8)  
H
G
1(25.4) x 3(76.2)  
NOTCH (THIS SIDE)  
3″  
(76.2)  
J
7
/
16  
(11.8)  
3
/ ″  
8
(10.3)  
1
/ ″  
2
(12.7)  
1
/
8(3.45) DIA HOLE  
(3) REQ'D  
SUPPORT B  
BAFFLE ASSEMBLY  
(RIGHT AND LEFT HAND REQ'D)  
A95447  
Fig. 9 --- Payne Units—Models PA10 / PA12 and PH10 / PH12  
10  
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11  
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A06235  
Fig. 10 --- Base / Comfortt / Legacyt Units Baffle Assembly  
12  
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13  
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BAFFLE-1  
MATL: 20 GA STEEL  
A06231  
BAFFLE ASSEMBLY  
A06230  
Fig. 11 --- Performancet and Preferredt Series Baffle Assemblies  
14  
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BAFFLE-2  
MATL: 20 GA STEEL  
A06232  
BAFFLE-3  
MAT'L: 20 GA STEEL  
A06234  
Fig. 12 --- Performancet and Preferredt Series Baffle Assemblies (continued)  
15  
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SUPPORT  
MAT'L: 20 GA STEEL  
A06233  
Fig. 13 --- Performancet and Preferredt Series Baffle Assemblies (continued)  
16  
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17  
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Printed in U.S.A.  
Edition Date: 5/06  
Copyright 2006 CAC / BDP S 7310 W. Morris St. S Indianapolis, IN 46231  
Catalog No: AG-SALA-07  
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.  
Replaces:AG--SALA--05  
18  
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