Carrier Performance 15 48VR-A, Installation Instructions Manual

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1
48VR---A
Performance
t
15 SEER 2---Stage Packaged
HYBRID HEAT
R
Dual Fuel System with Puron

(R---410A) Refrigerant
Single and Three Phase
2---5 Nominal Tons (Sizes 24---60)
Installation Instructions
NOTE : Read the entire instruction manual before starting the
installation.
NOTE : Installer: Make sure the Owner’s Manual and Service
Instructions are left with the unit after installation.
TABLE OF CONTENTS
PAGE
SAFETY CONSIDERATIONS 1 . . . . . . . . . . . . . . . . . . . . . . . . .
INTRODUCTION 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RECEIVING AND INSTALLATION 2--14 . . . . . . . . . . . . . . . . .
Check Equipment 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Identify Unit 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspect Shipment 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Provide Unit Support 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Roof Curb 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Slab Mount 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Field Fabricate Ductwork 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Provide Clearances 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rig and Place Unit 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rigging/Lifting of Unit 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connect Condensate Drain 10 . . . . . . . . . . . . . . . . . . . . . . . . . .
Install Flue Hood 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Install Gas Piping 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Install Duct Connections 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuring Units for Downflow (Vertical)
Discharge 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Install Electrical Connections 13 . . . . . . . . . . . . . . . . . . . . . . . .
High--Voltage Connections 13 . . . . . . . . . . . . . . . . . . . . . . . .
Special Procedures for 208--V Operation 13 . . . . . . . . . . . . . .
Control Voltage Connections 13 . . . . . . . . . . . . . . . . . . . . . . .
Standard Connection 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heat Anticipator Setting 14 . . . . . . . . . . . . . . . . . . . . . . . . . .
Transformer Protection 14 . . . . . . . . . . . . . . . . . . . . . . . . . . .
PRE--START--UP 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
START--UP 15--29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Check for Refrigerant Leaks 15 . . . . . . . . . . . . . . . . . . . . . . . . .
Start--Up Heating & Make Adjustments 15 . . . . . . . . . . . . . . . .
Check Heating Control 16 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Check Gas Input 16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjust Gas Input 16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Check Burner Flame 17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Normal Operation 27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Airflow and Temperature Rise 27 . . . . . . . . . . . . . . . . . . . . . .
Heating Sequence of Operation 27 . . . . . . . . . . . . . . . . . . . . .
Limit Switches 27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rollout Switch 27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Start--Up Cooling & Make Adjustments 27 . . . . . . . . . . . . . . . .
Checking Cooling Control Operation 27 . . . . . . . . . . . . . . . .
Checking & Adjusting Refrigerant Charge 28 . . . . . . . . . . . .
Indoor Airflow and Airflow Adjustments 28 . . . . . . . . . . . . .
Cooling Sequence of Operation 29 . . . . . . . . . . . . . . . . . . . . .
MAINTENANCE 46--49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Filter 46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Indoor Blower and Motor 46 . . . . . . . . . . . . . . . . . . . . . . . . .
A09033
Fig. 1 -- Unit 48VR--A
(Low NOx Model Available)
Induced Draft (Combustion Air) Blower 47 . . . . . . . . . . . . . .
Flue Gas Passageways 47 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Limit Switch 47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Burner Ignition 47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Main Burners 47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal of Gas Train 47 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outdoor Coil, Indoor Coil, & Condensate Drain Pan 47 . . . .
Outdoor Fan 48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Controls and Wiring 48 . . . . . . . . . . . . . . . . . . . . .
Refrigerant Circuit 48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gas Input 49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Evaporator Airflow 49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Puron Items 49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
START--UP CHECKLIST 50 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service maintenance,
or use can cause explosion, fire, electrical shock, or other
conditions which may cause death, personal injury, or property
damage. Consult a qualified installer, service agency, or your
distributor or branch for information or assistance. The qualified
installer or agency must use factory--authorized kits or accessories
when modifying this product. Refer to the individual instructions
packaged with the kits or accessories when installing.
Follow all safety codes. Wear safety glasses, protective clothing,
and work gloves. Have a fire extinguisher available. Read these
instructions thoroughly and follow all warnings or cautions
included in literature and attached to the unit. consult local
building codes, the current editions of the National Fuel Gas Code
(NFGC) NFPA 54/ANSI Z223.1, and the National Electrical Code
(NEC) NFPA 70.
In Canada refer to the current editions of the National Standards of
Canada CAN/CSA--B149.1 and .2 Natural Gas and Propane
Installation codes, and Canadian Electrical Code CSA C22.1
Recognize safety information. This is the safety--alert symbol
.
When you see this symbol on the unit and in instructions or manu-
als, be alert to the potential for personal injury. Understand these