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Addison UHAT 250 manual available for free PDF download: Installation, Operation & Service Manual
Addison UHAT 250 Installation, Operation & Service Manual (74 pages)
Tubular Unit Heaters (Standard Range) UHA-Series
Brand:
Addison
| Category:
Air Conditioner
| Size: 9.11 MB
Table of Contents
Table of Contents
5
SECTION 1: Heater Safety
9
Manpower Requirements
9
Safety Labels and Their Placement
9
California Proposition 65
9
Figure 1: UHA[T][X][S]150 - 250 Label Placement
10
Figure 2: UHA[X][S]300 - 400 Label Placement
11
SECTION 2: Installer Responsibility
12
Wall Tag
12
Corrosive Chemicals
12
National Standards and Applicable Codes
12
SECTION 3: Critical Considerations
13
Basic Information
13
Manufactured Units
13
Location and Suspension
13
Minimum Required Installation Clearances
13
Ventilation
13
Gas Supply
13
Electrical Supply
13
Vent
13
SECTION 4: Clearances to Combustibles
14
Required Clearances to Combustibles
14
Clearances to Combustibles
14
Figure 3: Installation Clearances and Clearances to Combustibles
15
SECTION 5: National Standards and Applicable Codes
16
Gas Codes
16
Aircraft Hangars
16
Parking Structures and Repair Garages
16
Electrical
16
Venting
16
High Altitude
17
SECTION 6: Heater Installation
18
General
18
Suspension
18
Figure 4: Suspension Methods
18
SECTION 7: Venting
19
Venting
19
Vent Installation
19
Unvented Operation
20
Horizontal Venting
20
Vertical Venting
20
Maximum Vent Lengths Table
20
Vent Material
20
Replacing an Existing Heater in a Venting System
21
Figure 5: Vent and Roof Detail
21
Figure 6: Standard Vented Heater - Vertical and Horizontal Vent Termination
22
Figure 7: Standard Vented Heater - Common Vertical Vent Termination
23
Figure 8: Separated Combustion Heater - Vertical and Horizontal Vent Termination
24
Figure 9: Concentric Vent Box
24
Figure 10: Concentric Vertical and Horizontal Vent
25
SECTION 8: Air Supply
26
Separated Combustion Installation
26
Unvented Installation
26
Building Ventilation
26
Outside Combustion Air Supply
26
SECTION 9: Gas Piping
27
Connections
27
Figure 11: Gas Connection
28
SECTION 10: Wiring
29
Positioning Thermostats
29
Low Voltage Thermostat with One Heater for Models UHA[T][X][S] 150-250
30
Low Voltage Thermostat with One Heater for Models UHA[X][S] 300-400
30
Low Voltage Thermostat with Multiple Heaters (Models UHA[T][X][S]150 - 250)
31
Low Voltage Thermostat with Multiple Heaters (Models UHA[X][S]300 - 400)
32
UHA[X][S] Series Internal Wiring Diagram for Single Stage Gas Valves
33
UHA[X][S] Series Ladder Wiring Diagram for Single Stage Gas Valves
34
UHA[T][X][S] Series Internal Wiring Diagram for Two Stage Gas Valves
35
UHA[T][X][S] Series Ladder Wiring Diagram for Two Stage Gas Valves
36
Electrical Connection to the Heater
37
SECTION 11: Operation and Maintenance
38
Pre-Start-Up Checks
38
Begin Start-Up
39
Figure 12: Automatic Burner Control Sequence
39
Figure 13: Single Stage Gas Valve for Models UHA[X][S] 150-400
40
Figure 14: Two Stage Gas Valve for Models UHA[T][X][S]
40
Pressure Switch
41
Turning off the Heater
41
External Controls
41
Complete the Start-Up
41
Instruction to the User
41
SECTION 12: User Instructions
42
Heater Operation
42
Lighting Instructions
42
Simple Troubleshooting
42
Figure 15: LED Diagnostic Codes
42
SECTION 13: Servicing
43
Servicing Instructions
43
Burner Maintenance
43
Fan/Motor Assembly Maintenance
44
Heat Exchanger Maintenance
44
Gas Valve Maintenance
44
Flue Blower
44
Venting and Air Intake Pipe
44
Maintenance Checklist
44
SECTION 14: Troubleshooting
47
General
48
Troubleshooting for Automatic Ignition Burner Systems
49
Troubleshooting for Flame Supervision System
50
Troubleshooting for Gas Valves
51
Troubleshooting for Flue Blower
51
SECTION 15: Replacement Parts
52
Gas Valve
52
Burner Compartment for Models UHA[T][X][S]
53
Burner Compartment for Models UHA[X][S] 300-400
55
Ignition Electrode and Flame Probe for Models UHA[T][X][S] 150-250
56
Ignition Electrode and Flame Probe for Models
57
Uha[X][S] 300-400
58
Heat Exchanger
58
Louvers and Louver Spring
58
Flue Blower for Models UHA[T][X][S] 150-175
59
Flue Blower for Models UHA[T][X][S] 200-300
60
Flue Blower for Models UHA[X][S] 350-400
61
Pressure Switch
62
Ignition Control
62
Axial Fan/Guard/Motor Assembly
62
Limit Switches
63
SECTION 16: Specifications
64
Dimension Data for Models UHA[T][X][S] 150-250
64
General Technical Data Table
65
Technical Data Table
65
Dimension Data for Models UHA[X][S] 300-400
66
General Technical Data Table
67
Technical Data Table
67
SECTION 17: the ADDISON
69
UHA-Series Warranty
69
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