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Lennox
Air Conditioner
CHA16
Lennox CHA16 User Manual
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Page 22
FIGURE 18
CHA162553, 2753, 3003 PLUMBING COMPONENTS (SLAB COIL SHOWN)
CONDENSING SECTION - LIQUID AND SUCTION LINES
1st ST
AGE
CIRCUIT
2nd ST
AGE
CIRCUIT
INNER
COIL
INNER
COIL
OUTER COIL
COMPRESSOR B1
COMPRESSOR B2
SUCTION LINE
FROM EV
APORA
TOR
SUCTION LINE
FROM EV
APORA
TOR
LIQUID LINE
TO EV
APORA
TOR
FIL
TER/DRIER
HOT GAS SERVICE
V
AL
VE/ GAUGE PORT
LIQUID SERVICE
V
AL
VE/ GAUGE PORT
HIGH PRESSURE
SWITCH S4
LOSS OF
CHARGE
SWITCH S24
HIGH PRESSURE
SWITCH S7
LOSS OF CHARGE
SWITCH S25
HOT GAS SERVICE
V
AL
VE/ GAUGE PORT
LIQUID
SERVICE
V
AL
VE/
GAUGE
PORT
THERMOMETER
WELL
THERMOMETER
WELL
FIL
TER/DRIER
SUCTION
GAUGE
PORT
SUCTION
GAUGE PORT
LIQUID LINE
TO EV
APORA
TOR
GAUGE PORT
2nd ST
AGE
EV
APORA
TOR
INDOORCOIL
1st ST
AGE
EV
APORA
TOR
INDOORCOIL
CHA16823, 953, 1353, 1603 EV
APORA
TOR PLUMBING
FIGURE 19
1
2
LIQUID LINE
2nd ST
AGE
EXP
ANSION V
AL
VE
1ST ST
AGE
EXP
ANSION V
A
L
VE
FREEZEST
A
T
S50
FREEZEST
A
T
S49
SUCTION LINE
LIQUID LINE
21
23
Table of Contents
Table of Contents
1
Specifications
2
Optional Accessories
3
Electrical Data
7
CHA16-823 Blower Performance
8
CHA16-953 Blower Performance
8
CHA16-1353 Blower Performance
8
CHA16-1603 Blower Performance
9
Blower Data
10
Accessory Air Resistance
11
PED16-185 & PED16-300 Power Exhaust Fans Performance
12
Ceiling Diffuser Air Throw Data
12
823/953 Parts Arrangement
12
1353/1603 Parts Arrangement
13
2553/2753/3003 Parts Arrangement
14
CHA16-823, -953 Control Box Components
14
CHA16-1353, -1603 Control Box Components
15
CHA16-1853 Unit Control Box
15
Application
16
Unit Components
16
Lifting Brackets
16
Control Box Components
16
Blower Motor Overload Relay S42
18
Compressor Delay DL15
18
Pilot Relay Board A11
18
Indoor Blower Contactor K3
18
Cooling Components
19
Low Ambient Lockout Switch
19
Compressor Motor Protector A9, A10
19
CHA16-823, -953 Plumbing Components
20
CHA16-1353,-1603 Plumbing Components
20
CHA16-1853 Plumbing Components Condensing Section - Vapor Lines
21
CHA15-1853 Plumbing Components Condensing Section - Liquid Lines
21
CHA16-823,-953,-1353,-1603 Evaporator Plumbing
22
CHA16-1853 Plumbing Components Evaporator Section
23
CHA16-2553,-2753,-3003 Plumbing Components Evaporator Sections
23
Compressors B1, B2 and B13
24
Crankcase Heaters HR1, HR2 and HR5
24
High Pressure Limit S4, S7 and S28
24
Loss of Charge Switch S24, S25 and S34
24
Thermometer Well
25
Freezestats S49, S50 and S53
25
Condenser Fans B4 and B5
25
Blower Compartment/Power Make-Up Components
25
Low Voltage Terminal Strip TB1
26
Line Voltage Make-Up Strip TB2
26
Typical Blower Compartment and Power Entry
26
Electrical Connections
27
Placement and Installation
27
Startup-Operation
27
Cooling System Service Checks
27
Indoor Blower Operation/Adjustment
28
Blower Operation
28
Determining Unit CFM
28
Maintenance
29
Blower Belt Adjustment
29
Filters
29
Evaporator Indoor Coil
29
Optional ECH16 Electric Heat
30
Matchups and Ratings
34
Electric Heat Components
34
Contactor K15
34
Contactor K16
34
Time Delay DL5
35
Time Delay DL18
35
High Temperature Limit S15
35
High Temperature Limit S63
35
Terminal Strip TB3
36
Transformer T2
36
Heating Elements
36
Accessories
40
RMF16 Mounting Frame
40
OAD16 Outdoor Air Damper
40
Economizer
40
REMD16M Downflow Economizer
41
EMDH16M Horizontal Economizer
42
Economizer Accessories
42
GED16 Gravity Exhaust Dampers
42
PED16 Power Exhaust Damper
42
Warm up Kit
43
Differential Enthalpy
43
Minimum Positioner
44
Enthalpy Sensor
44
Mixed Air Sensor
44
Wiring, Installation, Maintenance
45
Modulating Damper Motor Check
45
Transitions
46
Supply and Return Diffusers
46
Firestats
46
Cycle Control Kit
46
Cycle Control Kit Wiring Diagram
47
Low Ambient Kit
48
Status Panels SP11 and SSP11
48
Low Ambient Kit Typical Installation
48
SP11 Application
49
SSP11 Application
49
Indications and Functions
49
Commercial Controls Hardware
49
Optional Commercial Controls Systems
51
Typical Filter Access Section 15 Ton and Larger Units
51
Warm up Kit Relay Kit Installation 12.5 Ton and Smaller Units
52
Warm up Kit Relay Kit Installation 15 Ton and Larger Units
52
Clocks/Timers
54
C1 Diagram with B9 and A16 Diagrams
56
C1 Diagram with D5 Diagram
58
B41 Diagram with C1 Diagram
62
B9 Diagram with C1 Diagram
64
A2 Diagram with B2 Diagram
70
A5 Diagram with B2 Diagram
73
A6 Diagram with B2 Diagram
74
A7Diagram with B2 Diagram
75
A8 Diagram with B2 Diagram
76
A15 Diagram with B9 Diagram
77
A16 Diagram with B9 Diagram
78
A17 Diagram with B9 Diagram
79
A18 Diagram with B9 Diagram
80
A19 Diagram with B9 Diagram
81
A20 Diagram with B9 Diagram
82
A21 Diagram with B9 Diagram
83
A22 Diagram with B9 Diagram
84
A23 Diagram with B9 Diagram
85
A24 Diagram with B9 Diagram
86
5
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Lennox CHA16 Specifications
General
Brand
Lennox
Model
CHA16
Category
Air Conditioner
Language
English
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