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MS8H
Lennox MS8H User Manual
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Page 68
MS8C / MS8H (208-230V)
TYPICAL INDOOR UNIT WIRING DIAGRAM — 24 KBTU SYSTEMS (208 / 230V)
FIGURE 75
ROOM
TUBE
TEMP
. SENSOR
TEMP
. SENSOR
RT1
RT2
ROOM
TUBE
COM
−
OUT
AC
−
L
BU
XT1
N(1)
2
3
E
N
DISP1
L1
L1
YEGN(GN)
BN
BK
YEGN(GN)
OUTDOOR UNIT
AP2: MAIN BOARD
JUMP
FAN MOTOR
SWING
−
UD2
DC
−
MOTOR
EV
APORATOR
ELECTRIC BOX
G
AP1
G
YEGN(GN)
DISP2
TERMINAL
BLOCK
CAP
RECEIVER AND
DISPLAY BOARD
C0NNECTING
CABLE
MOTOR
STEPPING
MAGNETIC
RING
M
M
0
0
TYPICAL INDOOR UNIT WIRING DIAGRAM — 30 KBTU SYSTEMS (208 / 230V)
FIGURE 76
67
69
Table of Contents
Table of Contents
1
Overview
2
Shipping and Packing List
2
Required Tools and Supplies
3
Troubleshooting
4
Outdoor Unit
4
Matching Indoor Unit
4
Specifications
4
Model Number Identification
6
Unit Dimensions and Weights
6
Typical System Component Setup
7
II. Installation
8
General
8
Clearances
8
Torque Requirements for Caps and Fasteners
8
Setting Outdoor Unit
9
Repositioning Indoor Air Temperature Sensor
10
Indoor Unit Placement and Preparation
10
Indoor Unit Cable Connections
14
Securing Indoor Unit to Wall Mounting Bracket
15
Outdoor Unit Cable Connections
16
Operating Service Valves
19
Line Set Requirements
20
Leak Test and Evacuation
22
Unit Start-Up
23
Adding Refrigerant for Longer Line Sets
23
Checking Large Line Operating Pressures
23
Wrapping Bundle
25
Maintenance
26
Wireless Remote Functions
27
III. Operating the Wireless Remote
27
System Start up Using Wireless Remote
31
IV. System Operation and Service
35
System Operational Modes
35
System Functions
43
System Protection Features
44
Other Functions
46
Temperature Sensors
47
Indoor and Outdoor Control Parts Identifications
53
Indoor and Outdoor Error Codes
57
Refrigerant System Flow Diagrams
66
Typical Unit Wiring Diagrams
67
Troubleshooting
72
Major System Components
81
Optional Condensate Pump Wiring Connection
88
Disassembly Procedures
88
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Lennox MS8H Specifications
General
Brand
Lennox
Model
MS8H
Category
Air Conditioner
Language
English
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