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Rapid Engineering UHAT 150 manual available for free PDF download: Installation, Operation & Service Manual
Rapid Engineering UHAT 150 Installation, Operation & Service Manual (72 pages)
UHA-Series Tubular Unit Heaters
Brand:
Rapid Engineering
| Category:
Heater
| Size: 7.45 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][M][X][S]150 - 250 Label Placement
10
Figure 2: UHA[T][M][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
16
SECTION 6: Heater Installation
17
General
17
Suspension
17
Figure 4: Suspension Methods
17
SECTION 7: Venting
18
Venting
18
Vent Installation
18
Horizontal Venting
19
Vertical Venting
19
Maximum Vent Lengths Table
19
Vent Material
19
Replacing an Existing Heater in a Venting System
19
Figure 5: Vent and Roof Detail
20
Figure 6: Standard Vented Heater - Vertical and Horizontal Vent Termination
21
Figure 7: Standard Vented Heater - Common Vertical Vent Termination
22
Figure 8: Separated Combustion Heater - Vertical and Horizontal Vent Termination
23
Figure 9: Concentric Vent Box
23
Figure 10: Concentric Vertical and Horizontal Vent Termination - Separated Combustion Heater
24
SECTION 8: Air Supply
25
Separated Combustion Installation
25
Building Ventilation
25
Outside Combustion Air Supply
25
SECTION 9: Gas Piping
26
Connections
26
Figure 11: Gas Connection
27
SECTION 10: Wiring
28
Positioning Thermostats
28
Low Voltage Thermostat for Models UHA[T][M][X][S] 150-400
29
UHA[X][S] Series Internal Wiring Diagram for Single Stage Gas Valves
30
UHA[X][S] Series Ladder Wiring Diagram for Single Stage Gas Valves
31
UHA[T][X][S] Series Internal Wiring Diagram for Two Stage Gas Valves
32
UHA[T][X][S] Series Ladder Wiring Diagram for Two Stage Gas Valves
33
UHA[M][X][S] Series Internal Wiring Diagram for Modulating Gas Valves
34
UHA[M][X][S] Series Ladder Diagram for Modulating Gas Valves
35
Electrical Connection to the Heater
36
SECTION 11: Operation and Maintenance
37
Pre-Start-Up Checks
37
Begin Start-Up
38
Figure 12: Automatic Burner Control Sequence
38
Figure 13: Single Stage Gas Valve for Models UHA[X][S] 150 - 400
39
Figure 14: Two Stage Gas Valve for Models UHA[T][X][S]
39
Figure 15: Modulating Gas Valve for Models UHA[M][X][S] 150 - 400
40
Pressure Switch
42
Turning off the Heater
42
External Controls
42
Complete the Start-Up
42
Instruction to the User
42
SECTION 12: User Instructions
43
Heater Operation
43
Lighting Instructions
43
Simple Troubleshooting
43
Figure 16: LED Diagnostic Codes
44
SECTION 13: Servicing
45
Servicing Instructions
45
Burner Maintenance
45
Fan/Motor Assembly Maintenance
45
Heat Exchanger Maintenance
46
Gas Valve Maintenance
46
Flue Blower
46
Venting and Air Intake Pipe
46
Maintenance Checklist
46
SECTION 14: Troubleshooting
49
General
50
Troubleshooting for Automatic Ignition Burner Systems
51
Troubleshooting for Flame Supervision System
52
Troubleshooting for Gas Valves
53
Troubleshooting for Flue Blower
53
SECTION 15: Replacement Parts
54
Gas Valve
54
Burner Compartment for Models UHA[T][M][X][S]
55
Ignition Electrode and Flame Probe for Models UHA[T][M][X][S] 150-400
57
Heat Exchanger
58
Louvers and Louver Spring
58
Flue Blower for Models UHA[T][M][X][S] 150-300
59
Flue Blower for Models UHA[T][M][X][S] 350-400
60
Pressure Switch
61
Ignition Control
61
Axial Fan/Guard/Motor Assembly
61
Limit Switches
62
SECTION 16: Specifications
63
Dimension Data for Models UHA[T][M][X][S] 150-250
63
General Technical Data Table
64
Technical Data Table
64
Dimension Data for Models UHA[T][M][X][S] 300-400
65
General Technical Data Table
66
Technical Data Table
66
SECTION 17: the RAPID UHA-Series Warranty
67
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