York Y91E120D20 Manuals

Manuals and User Guides for York Y91E120D20. We have 1 York Y91E120D20 manual available for free PDF download: Installation Manual

York Y91E120D20 Installation Manual

York Y91E120D20 Installation Manual (54 pages)

Condensing Single-Stage ECM MultiPosition Gas Furnace

Brand: York | Category: Furnace | Size: 8 MB

Table of Contents

Table of Contents
3
General
5
Certification
5
Safety
5
Safety Rules and Precautions
6
Safety Requirements
7
Combustion Air Quality and List of Contaminants
7
Codes and Standards
8
For Furnaces Installed in the Commonwealth of Massachusetts Only
8
Inspection
9
Location
9
Ductwork
10
Ductwork General Information
10
Using the Duct Flanges
11
Ductwork Installation and Supply Plenum Connection - Upflow/Horizontal
11
Floor Base and Ductwork Installation - Downflow
12
Coil Installation
12
Downflow Duct Connectors
13
Residential and Modular Home Upflow Return Plenum Connection
14
Side Return Application
14
Bottom Return and Attic Installations
14
Horizontal Application
14
Attic Installation
14
Suspended Furnace or Crawl Space Installation
14
Downflow Application
15
Dimensions
16
Filter Installation
17
Installing Side Return Filters
17
Gas Piping
17
Gas Safety
17
Gas Piping Installation
18
Gas Orifice Conversion for Propane
19
High Altitude Gas Orifice Conversion
19
High-Altitude Pressure Switch Conversion
20
Electric Power
21
Electrical Power Connections
21
Connecting the Supply Voltage
22
Low-Voltage Control Wiring Connections
22
Accessory Connections
23
Electronic Air Cleaner Connection
23
Humidifier Connection
23
Furnace Control Twinning Wiring
23
Twinning Duct System
24
Condensate Piping and Furnace Venting Configuration
25
Condensate Drain Location
25
Combustion Air and Vent System
30
Combustion Air and Vent Safety
30
Combustion Air and Vent Pipe Sizing
30
Polypropylene Vent or Intake Piping
31
Combustion Air and Venting
32
Vent Clearances
33
Vent System
34
Vent Applications and Termination
35
Venting Multiple Units
35
Downward Venting
36
Combustion Air Supply
36
Outdoor Combustion Air
37
Dampers, Louvers and Grilles (Canada Only)
38
Air Supply Openings and Ducts
39
Combustion Air Source from Outdoors
39
Ventilated Combustion Air
39
Ventilated Combustion Air Termination
39
Specially Engineered Installations
40
Vent Blower Rotation
40
Start-Up and Adjustments
40
Gas Piping Leak Check
41
Running the Ignition System Sequence
41
Calculating the Furnace Input Rate for Natural Gas
41
Adjusting the Manifold Gas Pressure and Input Rate
43
Preparing to Read Gas Pressure
43
Airflow Settings
44
Safety Controls
47
Control Circuit Fuse
47
Blower Door Safety Switch
47
Rollout Switch Controls
47
Pressure Switches
47
Limit Controls
47
Normal Operation and Diagnostics
47
Normal Operation Sequence
47
Intermittent Blower - Cooling
48
Heating Cycle
48
Troubleshooting
49
Furnace Control Diagnostics
49
Diagnostic Fault Code Storage and Retrieval
50
Fault Code Retrieval
50
Replacement Parts
51
Replacement Part Contact Information
51
Wiring Diagrams
52
Start-Up Sheet
53

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