Reznor YDSA Unit Installation Manual Manual de usuario Pagina 2
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Valorado. / 5. Basado en revisión del cliente
Form I-Y, P/N 273646R6, Page 2
1.1 Cautions and Warnings
There are warning labels on the unit, on the front page, and throughout this manual.
For your safety, comply with all warnings during installation, operation, and service of
this system. Denitions of the hazard intensity levels of the cautions, warnings, and
dangers are shown below.
1.0 General
HAZARD INTENSITY LEVELS
1. DANGER: Failure to comply will result in severe personal injury or
death and/or property damage.
2. WARNING: Failure to comply could result in severe personal injury
or death and/or property damage.
3. CAUTION: Failure to comply could result in minor personal injury
and/or property damage.
Denitions of Hazard
Intensity Levels used in
this Manual
1.0 General .........................................................2
1.1 Cautions and Warnings ................................... 2
1.2 General Information ........................................ 3
1.3 Warranty ......................................................... 3
1.4 Installation Codes ........................................... 3
2.0 Location and Moving ...................................3
3.0 Receiving, Shipped Separate and Storage .
4
3.1 Receiving ........................................................ 4
3.2 Shipped Separate Accessories and Shipped
Loose Parts ..................................................... 4
3.3 Storage ........................................................... 6
4.0 Clearances and Dimensions .......................6
4.1 Clearances ..................................................... 6
4.2 Dimensions .................................................... 7
5.0 Mounting ..................................................... 10
5.1 Unit Weights.................................................. 10
5.2 Curb Cap Base and Mounting ...................... 10
5.3 Mounting on a Roof Curb ............................. 10
5.4 Rigging and Lifting ........................................ 19
6.0 Mechanical .................................................20
6.1 Install Hood(s) ............................................... 20
6.2 Duct Connections and Duct work ................ 22
6.3 Cooling Section Condensate Drain .............. 22
7.0 Electrical and Wiring .................................23
7.1 General ......................................................... 23
7.2 Supply Wiring................................................ 23
7.3 Wiring Diagram, Unit Wiring Requirements, and
Optional Convenience Electrical Outlet ......... 25
7.4 Electrical Compartment - Control Locations . 26
7.5 Control Wiring ............................................... 27
7.6 Supply Fan with Variable Frequency Drive .. 31
7.7 Condenser Fan Motors and Fans ................. 31
7.8 Compressors ................................................ 31
8.0 Controls ......................................................32
8.1 System Controller ......................................... 32
8.2 Supply Fan Control ....................................... 33
8.3 Other Optional Controls ................................ 34
9.0 Optional Equipment including Heat
Sections ......................................................35
9.1 Inlet Air and Exhaust Air Options .................. 35
9.2 Gas Heat Section .......................................... 37
9.3 Electric Heat Section .................................... 58
10.0 Commissioning and Startup ...................59
10.1 Preparation and Startup Requirements ...... 59
10.2 Checklist Prior to Startup ............................ 59
10.3 Unit Test Mode and Setting Fan CFM ......... 60
10.4 Other Control Settings ................................ 64
10.5 Checklist - Startup ...................................... 66
10.6 Checklist After Startup: ............................... 67
Appendix ..........................................................68
Cabinet Size 1, 2 or 3 by Model and Model Size
Cross-Referenced to Heat Section Size and Type
68
Wiring Diagram Option Identication .................. 68
Supply Fan Airow (cfm) / Pressure Drop (iwc) Tables
by Fan and Unit Size ..................................... 69
PE4 Airow (cfm) / Pressure Drop (iwc) Tables by Fan
and Unit Size ................................................. 71
PE5 Airow (cfm) / Pressure Drop (iwc) Tables by Fan
and Unit Size ................................................. 72
PE6 Airow (cfm) / Pressure Drop (iwc) Tables by Fan
and Unit Size ................................................. 73
Start-Up Information Form .................................. 74
References ......................................................... 75
Index .................................................................75
INSTALLATION RECORD - to be completed by
the installer: .................................................76
Table of Contents
- WARNING: 1
- 1.0 General 2
- 1.2 General 3
- Information 3
- 1.3 Warranty 3
- 1.4 Installation 3
- Controls Options: 5
- 4.0 Clearances and Dimensions 6
- 4.2 Dimensions 7
- 4.2 Dimensions (cont’d) 8
- Side View 9
- 5.0 Mounting 10
- (Control End 11
- (Inlet Hood End) 11
- 5.0 Mounting (cont'd) 12
- Roof Curb 13
- Option CJ55 16
- Return Air 17
- Supply Air 17
- 5.4 Rigging and 19
- 6.0 Mechanical 20
- Cabinet Size Dim “A” 21
- 1 32.44 / 824 21
- 2 40.31 / 1024 21
- 3 49.39 / 1255 21
- 6.0 Mechanical (cont’d) 22
- 7.0 Electrical and 23
- 7.2 Supply Wiring (cont’d) 24
- FIGURE 18 - High and Low 26
- Electrical Compartment 26
- • Allows same access as 27
- • Shipped with the unit for 28
- 7.5.3 Field Wiring 29
- (cont’d) 29
- • P/N 256957 30
- • P/N 42782 30
- Variable Frequency Drive 31
- Setting Fan CFM 31
- Condenser Fan Control 31
- Compressor Amps/ 31
- 8.0 Controls 32
- 8.2 Supply Fan 33
- 8.1 System 33
- Controller 33
- 8.0 Controls (cont'd) 34
- 9.0 Optional 35
- Equipment 35
- Sections 35
- 9.1.2 Power Exhaust 36
- Option PE__ 36
- 9.2 Gas Heat 37
- 9.2 Gas Heat Section (cont’d) 38
- Single Heat Section 39
- Manifold Assembly with 39
- 2-Stage Option AG71 39
- Manifold Pressure Tap 39
- Venter Control 43
- Pressure Switch 43
- Gas Pressure Safety 51
- Switches, Option BP4 51
- Section 54
- Control Access 55
- Condenser 55
- High-Efficiency 57
- Vent(s) 57
- 9.3 Electric Heat 58
- 10.2.2 Additional Gas 59
- Heat Checklist Prior to 59
- Startup: 59
- Alarm Prg Esc Up Enter Down 60
- (continued) 61
- Balance Airow 62
- 10.4 Other Control Settings 64
- 10.5 Checklist 66
- Size and Type 68
- Appendix (cont’d) 69
- Start-Up Information Form 74
- References 75
- I) Form I-Y (Version .5) 76
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