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VRB192
Lennox VRB192 User Manual
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18
Figure 15. Indoor Unit Branch Pipe Kits
V8IDBP01
V8IDBP02
V8IDBP03
V8IDBP04
V8IDBP05
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Name
Gas Side Joints (inch)
Liquid Side Joints (inch)
Insulatio
n
Material
(furnished)
(2 sets)
(2 sets)
(2 sets)
(2 sets)
(2 sets)
17
19
Table of Contents
General
1
Shipping and Packing List
1
Safety Requirements
2
Model Number Identification
2
System Piping
2
Unit Dimensions - Inches (MM)
3
Corner Weights
3
Center of Gravity
3
Back View
4
Side View
4
Dimensions - Piping Details - Inches (MM)
5
Outdoor Unit Placement Considerations
6
Lifting the Unit
7
Single Row
7
Two Rows
7
Three or more Rows
7
Clearances from Obstructions
8
Maintenance & Service Clearance
8
Perimeter Obstructions
8
Obstructions above the Unit
8
Cold Climate Considerations
9
Do Not Locate under Roof Overhang
9
Do Not Locate Where Drifting will Occur
9
Secure Unit to Weather Resistant Support
9
Air Discharge Duct
10
Protect Unit from Prevailing Winds
10
Static Pressure Settings
10
Discharge Duct Pressure Curves
12
Vrb072
12
Vrb120
12
Main/Sub Outdoor Unit Placement
13
Installation
13
Slab or Roof Mounting
13
Main/Sub Unit Placement
13
Refrigerant Piping Connections
14
Oil Return Trap
14
Maximum Permitted Refrigerant Pipe Length/ Maximum Height Difference
15
Pipe Size Allowable Increase Diameters (In.)
15
Outdoor Units
15
Indoor Units
15
Pipe and Component Names
16
Indoor Unit Auxiliary Pipe Selection
16
Typical Refrigerant Piping Diagram
16
Outdoor Unit Main Pipe Selection (L1)
17
INDOOR UNIT MAIN PIPE SELECTION (L1 to L13)
17
OUTDOOR UNIT PIPE SELECTION (G1, G2, G3, G1)
17
Outdoor Unit Branch Pipe Assembly Selection (L, M)
17
Horizontal Runs
20
Vertical Runs
20
Horizontal Installation
20
Vertical Installation
20
Branch Pipe Kit Placement
21
24 To 36” of Straight Pipe before and after Branch Pipe Kit
21
Pressure Test
22
Evacuate System
22
Triple Evacuation Procedure
22
Pressure Test Specifications
22
Additional Refrigerant Charge
23
Liquid Line Length Calculation
23
Outdoor Unit Calculation
23
Mode Selection Box Calculation
23
Additional Charge Amount
24
Maximum Additional Refrigerant Charge Amount
24
Branch Pipe Kit Calculation
25
Refrigerant Charge Calculation Example
25
Refrigerant Charge Amount Calculation
25
Refrigerant Discharge
26
Connecting Manifolded Units
27
Horizontal Surface
27
Heat Recovery Parallel Piping Connections
28
Connective Piping Sizes for Manifolded Outdoor Units
28
Outdoor Unit Branch Pipe Kits
29
Connecting Mode Selection Boxes
30
MS Box Piping Connection Information
30
Piping & Communication Cable Connection
31
Mode Selection Box Wiring Diagrams
31
Wiring Connections
32
Power Terminal Strip
32
Communication Terminal Strip
32
Wiring Terminals
32
Vrb072, 096, 120 - 230V
33
Vrb072, 096, 120 - 460V
33
Vrb144, 168, 192 - 230V
34
Vrb144, 168, 192 - 460V
34
Digital Display
35
Normal Display
35
Operating Display
35
Outdoor Unit Main Board
35
LCD Display
36
Main Screen
36
Oil Return
36
Menu Structure
37
VRB Electrical Data
39
Settings, Functions and Configurations
40
Dip Switch Settings and Configurations
40
S4 Static Pressure Setting
40
ENC 1 Outdoor Unit Address Setting
40
Settings and Functions
41
Electrical Installation for Indoor and Outdoor Units
44
Troubleshooting
46
Technical Support
48
4
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Lennox VRB192 Specifications
General
Brand
Lennox
Model
VRB192
Category
Heating System
Language
English
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