Reznor MAPS II Unit Installation Manual - Manual (Page 2)

Form I-MAPS II, 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, opera-
tion, and service of this system. Definitions of the hazard intensity levels of the
cautions, warnings, and dangers are shown below.
1. 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.
Definitions of Hazard
Intensity Levels used
in this Manual
1. General ..........................................................2
1.1 Cautions and Warnings .................................... 2
1.2 General Information ......................................... 3
1.3 Warranty ........................................................... 4
1.4 Installation Codes ............................................. 4
2. Location .........................................................4
3. Receiving, Moving, and Storage .................5
3.1 Receiving and Moving ...................................... 5
3.2 Storage and Installation Checks ...................... 6
4. Dimensions and Clearances ........................7
4.1 Dimensions - RCA, RDA, RDCA, RDDA .......... 7
4.2 Dimensions - RECA, REDA ............................. 8
4.3 Clearances ...................................................... 9
5. Mounting ........................................................9
5.1 Approximate Weights ....................................... 9
5.2 Roof Curb ....................................................... 12
5.3 Curb Heater Section, Model JHUP-0250 ....... 17
5.4 Rigging and Lifting ........................................ 17
6. Mechanical ..................................................18
6.1 Duct Connections ........................................... 18
6.2 Condensate Drain ......................................... 19
6.3 Inlet Air Hood .................................................. 20
6.4 Blowers, Belts, and Drives ............................. 22
7. Electrical and Wiring ..................................24
7.1 General, Wiring Diagram, and Unit
Wiring Requirements ....................................... 24
7.2 Supply Wiring ................................................ 24
7.3 Disconnect Switch .......................................... 25
7.4 Control Wiring ............................................... 25
7.5 Blower Motor .................................................. 26
7.6 Condenser Fan Motors and Fans .................. 26
7.7 Compressors .................................................. 26
8. Controls .......................................................28
8.1 Digital Control Systems ................................. 28
8.2 Remote Console ............................................ 31
8.3 Control Locations .......................................... 32
8.4 Miscellaneous Electrical / Control Options ..... 33
9. Optional Equipment including
Heat Sections ..............................................34
9.1 Inlet Air Control and Energy Recovery
Options ........................................................... 34
9.2 Power Exhaust (Building) ............................... 38
9.3 Gas Heat Module - Models RDCA & RDDA ... 39
9.4 Curb Section with Gas-Fired Duct Furnace,
Model JHUP-0250 .......................................... 50
9.5 Electric Heat Section - Model RECA and
Model REDA .................................................. 51
10. Commissioning and Startup ...................52
10.1 General ........................................................ 52
10.2 Checklist Prior to Startup ............................ 52
10.3 Checklist - Startup ....................................... 53
10.4 Checklist After Startup: ................................. 56
10.5 Startup Form ................................................ 57
APPENDIX .......................................................58
Cross-Reference by Model/Size and Cabinet
Size A, B, or C .................................................. 58
Technical Data ..................................................... 59
Wiring Diagram Option Identification .................... 60
Pressure/Temperature Chart for Checking
Superheat and Subcooling ............................... 61
Index ................................................................62
References .....................................................63
Table of Contents