System information

2
TABLE OF CONTENTS
SAFETY CONSIDERATIONS ................................................................................................................................................................... 3
INTRODUCTION ........................................................................................................................................................................................ 3
RECEIVING AND INSTALLATION ........................................................................................................................................................ 3
Check equipment .......................................................................................................................................................................................... 3
Identify unit .................................................................................................................................................................................................... 3
Inspect shipment ............................................................................................................................................................................................. 3
Provide unit support..................................................................................................................................................................................... 3
Roof curb ........................................................................................................................................................................................................ 3
Slab mount ...................................................................................................................................................................................................... 3
Ground mount ................................................................................................................................................................................................. 3
Dimensions .................................................................................................................................................................................................... 4
Provide clearances ........................................................................................................................................................................................ 6
Rig and place unit ......................................................................................................................................................................................... 6
INSPECTION ............................................................................................................................................................................................... 6
INSTALLATION ......................................................................................................................................................................................... 6
Select and install duct work ......................................................................................................................................................................... 6
Converting horizontal discharge units to downflow (vertical) discharge units .............................................................................................. 7
Provide for condensate disposal .................................................................................................................................................................. 7
Install electrical connections ........................................................................................................................................................................ 7
High-voltage connections ............................................................................................................................................................................. 7
Phyiscal data ............................................................................................................................................................................................... 11
Electrical data ............................................................................................................................................................................................. 12
Routing power leads into unit....................................................................................................................................................................... 16
Connecting ground lead to ground lug ......................................................................................................................................................... 16
Routing control power wires (24 V) ............................................................................................................................................................. 16
PRE-START-UP ......................................................................................................................................................................................... 16
START-UP .................................................................................................................................................................................................. 16
Check for refrigerant leaks........................................................................................................................................................................ 16
Start-up adjustments .................................................................................................................................................................................. 16
Checking cooling and heating control operation .......................................................................................................................................... 17
Checking and adjusting refrigerant charge ................................................................................................................................................... 17
Refrigerant charge ........................................................................................................................................................................................ 17
No charge...................................................................................................................................................................................................... 17
Low charge cooling ...................................................................................................................................................................................... 17
Heating mode charge .................................................................................................................................................................................... 17
To use cooling charging charts ..................................................................................................................................................................... 17
Indoor air flow and air flow adjustments ..................................................................................................................................................... 17
Defrost control ............................................................................................................................................................................................ 19
Quiet Shift .................................................................................................................................................................................................... 19
Defrost .......................................................................................................................................................................................................... 19
MAINTENANCE. ..................................................................................................................................................................................... .19
Air filter ....................................................................................................................................................................................................... 19
Indoor blower and motor ........................................................................................................................................................................... 21
Outdoor coil, indoor coil, and condensate drain ..................................................................................................................................... 21
Outdoor fan ................................................................................................................................................................................................. 21
Electrical controls and wiring ................................................................................................................................................................... 21
Refrigerant circuit ...................................................................................................................................................................................... 21
Indoor air flow ............................................................................................................................................................................................ 21
PURON® system items .............................................................................................................................................................................. 21
System information .................................................................................................................................................................................... 24
Heat pumps with Puron - quick reference guide ..................................................................................................................................... 24
TROUBLESHOOTING CHART ............................................................................................................................................................. 25
START-UP CHECKLIST ......................................................................................................................................................................... 26