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KCA048
Lennox KCA048 User Manual
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Page 47
507348-04 12/2015
60
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170
Liquid Temperature (
°
F)
Suction Pressure (psig)
Outdoor Temperature (°F)
KGB/KCB 030 Charging Curves
115°
105°
95°
85°
75°
65°
180
60
70
80
90
100
110
120
130
110
120
130
140
150
160
170
Liquid Temperature (
°
F)
Suction Pressure (psig)
Outdoor Temperature (°F)
KGB/KCB 036 Charging Curves
115°
105°
95°
85°
75°
65°
180
46
48
Table of Contents
Table of Contents
1
Dimensions
2
Parts Arrangement
3
Shipping and Packing List
4
General
4
Requirements
4
Downflow Discharge Application
5
Unit Support
5
Duct Connection
5
Units Equipped with an Optional Economizer
6
Rigging Unit for Lifting
6
Horizontal Air Discharge
6
Condensate Drains
6
Remove Drain Pan
7
Units with Hinged Panels
7
Condensate Bottom Drain Connection
7
Condensate Side Drain Connection
7
Connect Gas Piping (Gas Units)
8
Bottom Drain Connection
8
Bottom Condensate Drain
8
Outside of Unit Gas Pipe Connection
8
Pressure Test Gas Piping (Gas Units)
9
Bottom Entry Gas Piping Completed
9
High Altitude Derate
9
Electrical Connections
9
Control Wiring
10
Thermostat Location
10
Location of Static Pressure Readings
10
Field-Adjustable Blower Speeds - Direct Drive 208/230V
11
Determining Unit CFM - Direct Drive Blowers
11
Blower Speed Factory Settings
11
Blower Operation and Adjustments
11
Two-Speed Blower Operation
12
Minimum and Maximum Pulley Adjustment
12
Field-Adjustable Blower Speeds - Direct Drive - 460/575V
12
Blower Assembly
13
Pulley Alignment
13
Measure Belt Tension
14
Adjust Belt Tensioner
14
Install Belt
14
Field-Furnished Blower Drives
14
Blower Data - Direct Drive - Kgb024
15
Blower Data - Direct Drive - Kgb030
16
Blower Data - Direct Drive - Kga/Kgb036, Kga/Kgb048
17
Blower Data - Direct Drive - Kga060
18
Blower Data - Direct Drive - Kgb060
19
Blower Data - Belt Drive - Kga/Kgb036
20
Blower Data - Belt Drive - Kga/Kgb048
21
Blower Data - Belt Drive - Kga060
22
Blower Data - Belt Drive - Kgb060
23
Blower Data - Belt Drive - Downflow - Kga072, Kgb072 & 074
24
Blower Data - Belt Drive - Horizontal - Kga072, Kgb072 & 074
25
Blower Data - Belt Drive - Kga090 - Downflow
26
Blower Data - Belt Drive - Kga090 - Horizontal
27
Blower Data - Direct Drive - Kcb024
28
Blower Data - Direct Drive - Kcb030
29
Blower Data - Direct Drive - Kca/Kcb036, Kca/Kcb048
30
Blower Data - Direct Drive - Kca060
31
Blower Data - Direct Drive - Kcb060
32
Blower Data - Belt Drive - Kca/Kcb036
33
Blower Data - Belt Drive - Kca/Kcb048
34
Blower Data - Belt Drive - Kca060
35
Blower Data - Belt Drive - Kcb060
36
Blower Data - Belt Drive - Kca072, Kcb072 & 074 - Downflow
37
Blower Data - Belt Drive - Kca072, Kcb072 & 074 - Horizontal
38
Blower Data - Belt Drive - Kca090 - Downflow
39
Blower Data - Belt Drive - Kca090 - Horizontal
40
Blower Data
41
Belt Drive Kit Specifications
41
Cooling Operation
42
Drive Component Manufacturer's Numbers
42
Cooling Start-Up
42
Refrigerant Charge and Check - Fin/Tube Coil
43
Approach Temperature
44
KGB/KCB024 Normal Operating Pressures
44
KGB/KCB030 Normal Operating Pressures
45
KGB/KCB036 Normal Operating Pressures
45
KGB/KCB048 Normal Operating Pressures
45
KGB/KCB 060 Normal Operating Pressures
45
KGB/KCB 074S & H Normal Operating Pressures
46
KGA/KCA 090 Normal Operating Pressures
46
KGB/KCB 024 Charging Curves
46
KGB/KCB 030 Charging Curves
47
KGB/KCB 036 Charging Curves
47
KGB/KCB 060 Charging Curves
48
KGB/KCB 048 Charging Curves
48
KGB/KCB074S & H Charging Curves
49
KGA/KCA 072 Charging Curves
49
KGA/KCA 090 Charging Curves
50
Compressor Controls
50
Freezestat
50
High Pressure Switch
50
Gas Heat Start-Up (Gas Units)
51
Gas Valve Operation
51
Honeywell Vr8215S Gas Valve
51
White Rodgers 36J54 Gas Valve
51
Turning off Gas to Unit
52
C-Limit Controls
52
Electric Heat Start-Up (KC Units)
52
Heating Operation and Adjustments
52
Unit Filters
53
Remove Filters
53
Burner Box Assembly
53
Service
53
Ignitor
54
Burner Orientation
54
Heat Exchanger Assembly
54
Combustion Air Inducer (Gas Units)
54
Clean Fin/Tube Condenser Coil - Kga/Kca 036, 048, 060
55
Flue Box
55
Evaporator Coil
55
Fin/Tube Coils
55
Supply Air Blower Replacement
56
4
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Lennox KCA048 Specifications
General
Brand
Lennox
Model
KCA048
Category
Air Conditioner
Language
English
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