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WG421
Bard WG421 Manuals
Manuals and User Guides for Bard WG421. We have
1
Bard WG421 manual available for free PDF download: Installation Instructions Manual
Bard WG421 Installation Instructions Manual (52 pages)
COMBINATION GAS/ELECTRIC WALL-MOUNT
Brand:
Bard
| Category:
Furnace
| Size: 1.18 MB
Table of Contents
Table of Contents
2
Getting Other Information and Publications
4
WG Series Model Nomenclature
5
Ventilation Options
5
Air Conditioning Module Options
6
Important
6
Application
6
Duct Work
6
Table 1 Specifications
7
Figure 1 Unit Dimensions
8
High Altitude Applications
9
Transportation Damage
9
Installation
9
Wall Mounting
10
Mounting the Unit
10
Figure 2 Vent Terminal & Combustion Air Intake
11
Figure 3 Internal Filter Access through Upper Service Door
11
Figure 4 Mounting Instructions
12
Figure 5 Combustible Clearance
13
Figure 6 Wall Mounting Instructions
14
Figure 7 Wall Mounting Instructions
14
Figure 8 Common Wall Mounting Installations
15
Clearances
16
Vent Terminal and Combustion Inlet Hood
16
Optional Vertical Venting
16
Vent Resizing Instructions
16
Table 2 Minimum Installation Clearances
16
Fresh Air Intake
17
Condensate Drain
17
Wiring - Main Power
17
Figure 9 Fresh Air Damper
17
Wiring - Low Voltage Wiring
19
Thermostats
19
Figure 10 Installation of Flexible Conduit
19
Table 3 Thermostat Wire Size
19
Figure 11 Low Voltage Wiring
20
Figure 12 Gas Pipe Connection
21
Gas Supply & Piping
22
Figure 13 Proper Piping Practice
22
Table 4 Wall Thermostat & Subbase Combinations . 16 Table 5 Length of Standard Pipe Threads
22
Table 6 Gas Pipe Sizes - Natural Gas
22
Manifold Pressure Adjustment
23
Checking Gas Input Rate
23
Standard Orifice Sizing & High Altitude Derate
24
Table 7 High Altitude Derate Charts - U.S. Installations Only
25
Table 8 High Altitude Derate Charts - Canadian Installations Only
26
Conversion of Gas Input BTUH from High to Low Rating
27
Measuring Air Temperature Rise
27
Filters
28
Compressor Control Module
28
Lighting & Shutdown Instructions
29
Figure 14 Lighting & Shutdown Instruction Label
29
Service Agency Procedures
30
Maintaining Unit in Good Working Order
30
Figure 15 Top View of Gas Control
30
Replacement Parts
31
Sequence of Operation - Heating
32
Sequence of Operation - Cooling
32
Figure 16 Sequence of Operation - Electronic Blower Control
32
Indoor Blower Operation
33
Figure 17 Furnace Control Board & Blower Control
33
Figure 18 460V Blower Motor Wiring Options
34
Table 9 WG421 Indoor Blower Performance
35
Table 10 WG482 Indoor Blower Performance
36
Table 11 WG601 Indoor Blower Performance
37
Table 12 Integrated Furnace & Blower Control Operation
38
Pressure Service Ports
39
Refrigerant Charge
39
Table 13 Cooling Pressure Table
39
Table 14 Refrigerant Charge
39
Fan Blade Setting Dimensions
40
Low Nox Burner Assembly "N" Suffix Models Only - U.S. Installations Only
40
Figure 19 Fan Blade
40
Figure 20 Low Nox Insert
40
Table 15 Fan Blade Dimension
40
Wiring Diagrams
41
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