Carrier Infinity 15 SEER 50XT-A- User Manual
Carrier Infinity 15 SEER 50XT-A– User Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.
Table of Contents:
- Page 2 – SAFETY CONSIDERATIONS; WARNING; INTRODUCTION; Step 1 — Check Equipment
- Page 3 – CAUTION; except; Step 3 — Provide Clearances
- Page 4 – LARGE CURB; SMALL OR LARGE BASE UNIT
- Page 7 – Rigging/Lifting of Unit; UNIT FALLING HAZARD; ACCESS PANELS MUST BE IN PLACE WHEN RIGGING.; DETAIL A
- Page 8 – Step 5 — Select and Install Ductwork; Step 6 — Provide for Condensate Disposal
- Page 9 – Horizontal Duct Covers; Step 7 — Install Electrical Connections; ELECTRICAL SHOCK HAZARD; UNIT COMPONENT DAMAGE HAZARD
- Page 11 – TOP COVER; EQUIPMENT OPERATION HAZARD; NOTE; Option 1: Mounting Sensor to the Adjacent
- Page 12 – Option 2: Mounting Sensor Under the Outdoor; A. Accessory Electric Heaters
- Page 13 – OAT PACKAGE
- Page 14 – ENVIRONMENTAL HAZARD
- Page 18 – Step 2 — Sequence of Operation
- Page 19 – Table 2 – Heat Pump/Air Conditioner Board Status Codes; After second stage is satisfied, the unit returns to low--stage; Outdoor fan motor will continue to operate for one
- Page 21 – Step 3 — Check for Refrigerant Leaks
- Page 23 – MAINTENANCE
- Page 24 – UNIT OPERATION HAZARD; Infinity Top
- Page 25 – Step 11 — Refrigerant System
- Page 26 – TROUBLESHOOTING
- Page 27 – FINAL CHECKS; IMPORTANT; CARE AND MAINTENANCE
- Page 28 – Never
- Page 29 – Table 7 – Troubleshooting Chart
1
50XT--- A
Infinity
®
15 SEER
Single --- Packaged Heat Pump System
with Puron
®
(R--- 410A) Refrigerant
Single Phase
2 --- 5 Nominal Tons (Sizes 24 --- 60)
Installation Instructions
EQUIPMENT OPERATION HAZARD
Failure to follow this caution may result in improper unit
operation.
OAT sensor must be field installed. Follow installation
instructions for proper installation.
!
CAUTION
EQUIPMENT OPERATION HAZARD
Failure to follow this caution may result in improper unit
operation.
This Infinity unit is designed for use with an Infinity User
Interface.
!
CAUTION
NOTE
:
Read the entire instruction manual before starting the
installation.
TABLE OF CONTENTS
PAGE
SAFETY CONSIDERATIONS
2
. . . . . . . . . . . . . . . . . . . . . . . . .
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
3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Provide Clearances
3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rig and Place Unit
3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection
7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rigging/Lifting of Unit
7
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Select and Install Ductwork
8
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Converting Horizontal Discharge Units to Downflow
(Vertical) Discharge Units
8
. . . . . . . . . . . . . . . . . . . . . . . . . .
Provide for Condensate Disposal
8
. . . . . . . . . . . . . . . . . . . . . .
Install Electrical Connections
9
. . . . . . . . . . . . . . . . . . . . . . . . .
High--Voltage Connections
9
. . . . . . . . . . . . . . . . . . . . . . . . .
Routing Power Leads Into Unit
9
. . . . . . . . . . . . . . . . . . . . . .
Connecting Ground Lead to Ground Screw
9
. . . . . . . . . . . .
Routing Control Power Wires
11
. . . . . . . . . . . . . . . . . . . . .
Outdoor Air Temperature Sensor (OAT)
11
. . . . . . . . . . . . . .
Accessory Installation
12
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Special Procedures for 208--v Operation
12
. . . . . . . . . . . . . .
PRE--START--UP
14
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
START--UP
14--20
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unit Start--Up
14
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sequence of Operation
18
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Check for Refrigerant Leaks
21
. . . . . . . . . . . . . . . . . . . . . . . . .
Start--Up Adjustments
21
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A09032
Fig. 1 -- Unit 50XT--A
Checking Cooling and Heating Control Operation
21
. . . . . .
Checking and Adjusting Refrigerant Charge
21
. . . . . . . . . . .
Refrigerant Charge
21
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
No Charge
21
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low Charge Cooling
21
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
To Use Cooling Charging Charts
21
. . . . . . . . . . . . . . . . . . . .
Indoor Airflow and Airflow Adjustments
21
. . . . . . . . . . . . .
Non--Communicating Emergency Cooling/Heating Mode
21
. .
MAINTENANCE
23--25
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Filter
24
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Indoor Fan and Motor
24
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outdoor Coil, Indoor Coil, and Condensate Drain Pan
24
. . . . .
Outdoor Fan
24
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Controls and Wiring
24
. . . . . . . . . . . . . . . . . . . . . . .
Refrigerant Circuit
24
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Indoor Airflow
24
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Metering Devices–TXV & AccuRater
®
Piston
24
. . . . . . . . . . .
Pressure Switches
25
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loss--of--Charge Switch
25
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
High--Pressure Switches
25
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Copeland Scroll Compressor (Puron
®
Refrigerant)
25
. . . . . . . .
Refrigerant System
25
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Refrigerant
25
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compressor Oil
25
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Servicing Systems on Roofs with Synthetic Materials
25
. . . .
Liquid--Line Filter Drier
25
. . . . . . . . . . . . . . . . . . . . . . . . . .
Puron (R--410A) Refrigerant Charging
25
. . . . . . . . . . . . . . .
TROUBLESHOOTING
26
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FINAL CHECKS
27
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CARE AND MAINTENANCE
27
. . . . . . . . . . . . . . . . . . . . . . . .
START--UP CHECKLIST
30
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Summary
2 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 propertydamage. Consult a qualified installer, service agency, or your distributor or branch f...
3 ! CAUTION UNIT/STRUCTURAL DAMAGE HAZARD Failure to follow this caution may result in property damage.Ensure there is sufficient clearance for saw blade when cutting the outer horizontal flange of the roof curb so there is no damage to the roof or flashing. A B C MAXIMUM ALLOWABLE DIFFERENCE in. (m...
4 RETURN AIR SMALL BASE UNIT SUPPLY AIR LARGE BASE UNIT UNIT PLACEMENT ON COMMON CURB LARGE CURB SMALL OR LARGE BASE UNIT SMALL/COMMON CURB ROOF CURB DETAIL Wood nailer* Roofcurb* Insulation(field supplied) *Provided with roofcurb Cant stripfield supplied Roofing materialfield supplied Flashing fiel...
