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York YH4 Series Manuals
Manuals and User Guides for York YH4 Series. We have
1
York YH4 Series manual available for free PDF download: Installation Manual
York YH4 Series Installation Manual (70 pages)
R-454B Outdoor Split-System Single-Phase Heat Pump
Brand:
York
| Category:
Heat Pump
| Size: 4 MB
Table of Contents
Table of Contents
3
About the Unit
5
Certification
5
DS Solutions App
5
Safety
6
Understanding Safety Symbols and Instructions
6
Safety Requirements
7
A2L Refrigerant Safety Considerations
8
General
8
Room Size Requirements
9
Mechanical Ventilation
11
Refrigerant Equipment Checks
11
Electrical Devices Checks
12
Detection of Refrigerant
12
Wiring Installation
13
Installation Overview
16
Preparing for Installation
17
Selecting a Location for Installation
17
Inspecting the Unit
19
Understanding Installation and Operation Limitations
19
Meeting Requirements for A2L Equipment
19
Installing the Outdoor Unit
21
Setting the Outdoor Unit on the Ground or on a Roof
21
Mounting the Outdoor Unit on a Wall
23
Installing the Outdoor Unit as a Replacement Unit
23
Installing the Refrigerant Piping
25
Installing the Vapor and Liquid Lines
25
Installing the Liquid Line Filter-Drier
27
Brazing the Refrigerant Lines and Service Valves
27
Installing the Thermostatic Expansion Valve (TXV)
29
Checking for Refrigerant Leaks
32
Evacuating the Refrigerant Lines and Indoor Coil
32
Releasing Refrigerant into the System
33
Connecting the Wiring
34
General Information and Grounding the Unit
34
Completing the Field Power Wiring Connections
35
Completing the Field Control Wiring Connections
35
Control Wiring Diagrams
37
Using the Optional S1-2HU16700124 Dehumidification Control
40
Charging the System
41
Measuring Indoor Airflow
42
Checking the Indoor Cubic Feet Per Minute (CFM) Settings
42
Determining the Total System Charge
42
Charging with Gauges
43
Subcooling Charging Charts
44
Heating Charging Charts
51
Starting up the System
57
Energizing the Crankcase Heater (if Applicable)
57
Instructing the Owner
58
Maintenance and Repair
58
Required Procedures for A2L Systems
59
Decommissioning
60
Test Input
61
System Components and Operation
63
Anti-Short-Cycle Delay
63
Low Voltage Detection
63
Fault Code Display
63
Demand Defrost
64
Operating Demand Defrost
64
Defrost Curves
65
Defrost Curve Selection
65
Defrost Cycle Initiation
65
Defrost Inhibition
65
Defrost Termination
66
Cooling Operation
66
Heating Operation
66
Emergency Heat
66
Pressure Switch Fault Detection and Lockout
67
Third-Party Trademarks Notice
67
Wiring Diagrams
68
Start-Up Sheet
69
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