Filter
Top Products
1
48VT(N)---A
Performancet 14 SEER Single---Packaged HYBRID HEAT®
Dual Fuel System with Puronr (R---410A) Refrigerant
Single And Three Phase
2 --- 5 N o m i n a l To n s ( S i z e s 2 4 --- 6 0 )
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 a fter installation.
TABLE OF CONTENTS
PAGE
SAFETY CONSIDERATIONS 1.........................
INTRODUCTION 2...................................
RECEIVING AND INSTALLATION 2--13.................
Check Equipment 2..................................
Identify Unit 2....................................
Inspect Shipment 2.................................
Provide Unit Support 2...............................
Roof Curb 2......................................
Slab Mount 2.....................................
Field Fabricate Ductwork 2............................
Provide Clearances 2.................................
Rig and Place Unit 6.................................
Connect Condensate Drain 7...........................
Install Flue Hood 7...................................
Install Gas Piping 7..................................
Install Duct Connections 8.............................
Configuring Units for Downflow (Vertical)
Discharge 8......................................
Install Electrical Connections 11........................
High--Voltage Connections 11........................
Special Procedures for 208--V Operation 11..............
Control Voltage Connections 11.......................
Balance Point Setting Thermidistat or Hybrid Heat
Thermostat 12....................................
Transformer Protection 12...........................
PRE--START--UP 12...................................
START--UP 13--17.....................................
Check for Refrigerant Leaks 1 3.........................
Unit Sequence of Operation 13.........................
Start--Up Heating and Make Adjustments 13...............
Checking Heating Control 14.........................
Check Gas Input 14................................
Adjust Gas Input 14................................
Check Burner Flame 15.............................
Start--Up Cooling and Make Adjustments 16...............
Checking Cooling Control Operation 16................
Checking and Adjusting Refrigerant 16.................
Indoor Airflow and Airflow Adjustments 16.............
Continuous Fan Operation 17........................
MAINTENANCE 27-- 33................................
Air Filter 27........................................
Indoor Blower and Motor 27...........................
Flue Gas Passageways 28..............................
Limit Switch 28.....................................
Burner Ignition 28...................................
Main Burners 28....................................
Outdoor Coil, Indoor Coil, & Condensate Drain Pan 28......
A09042
Fig. 1 -- Unit 48VT -- A
Outdoor Fan 29.....................................
Electrical Controls and Wiring 29.......................
Refrigerant Circuit 29.................................
Gas Input 30........................................
Indoor Airflow 30...................................
Check Defrost Thermostat 30...........................
PuronR Items 30....................................
TROUBLESHOOTING 33..............................
START-- UP CHECKLIST 33............................
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