Carrier 40QA024-060 - Manual
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Table of Contents:
- Page 3 – Table 3A — Physical Data, Under Ceiling Cooling Only Units; Step 1 — Complete Pre-Installation Checks; Fig. 2 — Removal of Mounting Brackets
- Page 4 – Table 3B — Physical Data, Under Ceiling Heat Pump Units; Step 2 — Select Location —
- Page 5 – Fig. 3 — Base Unit Dimensions
- Page 6 – Step 3 — Mount Unit —; Fig. 4 — Fan Coil Unit Clearances
- Page 7 – Step 4 — Connect Refrigerant Piping —; under
- Page 8 – Step 5 — Connect Condensate Drain Line —; Table 4A — Piston and Charge Combinations — Cooling Only Systems
- Page 9 – Fig. 13 — AccuRater Metering Device at Service
- Page 10 – Step 6 — Make Electrical Connections —; Table 5 — Electrical Data*
- Page 12 – Step 7 — Install Thermostat —; Fig. 15 — Routing Drain Piping; Fig. 16 — Line Power Connections
- Page 13 – Do not; Fig. 17 — Control Circuit Connections Arrangement
- Page 14 – Fig. 18 — Thermostats
- Page 15 – Metering Device Components
- Page 16 – Fig. 20 — Cooling System Wiring Diagram
- Page 17 – Fig. 21 — Heat Pump Wiring Diagram
- Page 19 – Table 6 — Cleaning and Maintenance Schedule; monthly; Fig. 22 — Inserting Water into Drain Pan
- Page 20 – Fig. 23 — Cleaning Filters
- Page 21 – Table 7 — Troubleshooting
- Page 22 – SERVICE TRAINING; Packaged Service Training; • Unit Familiarization; Classroom Service Training; descriptions and schedules are in our catalog.
- Page 23 – I. PRELIMINARY INFORMATION
- Page 24 – MEASURE AND RECORD THE:; STALLED IN SIGHT FROM THE UNIT?
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 02-40QA0007-SI
Printed in U.S.A.
Form 40QA-7SI
Pg 1 706 3-06 Replaces: 40QA-5SI
Book 1 4
Tab
3d 2c
Installation, Start-Up and Service Instructions
CONTENTS
Page
SAFETY CONSIDERATIONS
. . . . . . . . . . . . . . . . . . . . . . . . . 1
INSTALLATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17
Step 1 — Complete Pre-Installation
Checks
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
• UNPACK UNIT
• INSPECT SHIPMENT
• BEFORE INSTALLATION
Step 2 — Select Location
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Step 3 — Mount Unit
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
• WOODEN STRUCTURE
• NEWLY BUILT CONCRETE SLAB
• METAL STRUCTURE
• PREVIOUSLY BUILT CONCRETE SLAB
• TO MOUNT UNIT
• TO INSTALL THERMOSTAT
Step 4 — Connect Refrigerant Piping
. . . . . . . . . . . . . . . . 7
Step 5 — Connect Condensate Drain Line
. . . . . . . . . . . 8
Step 6 — Make Electrical Connections
. . . . . . . . . . . . .10
Step 7 — Install Thermostat
. . . . . . . . . . . . . . . . . . . . . . . .12
Step 8 — Make Connections Between
Indoor and Outdoor Units
. . . . . . . . . . . . . . . . . . . . . . . .15
• CHECK ACCURATOR METERING DEVICE
• COOLING ONLY SYSTEMS
• HEAT PUMP SYSTEMS
START-UP
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18,19
After Extended Shutdown
. . . . . . . . . . . . . . . . . . . . . . . . . .18
Seasonal Changeovers
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Adjusting Airflow
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Operating Mode Memory
. . . . . . . . . . . . . . . . . . . . . . . . . . .18
Automatic Operation (Auto.) Mode
. . . . . . . . . . . . . . . . . .18
Operating Sequence
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
• FAN OPERATION
• COOLING MODE OPERATION
• HEAT PUMP OPERATION
• DEFROST (Heat Pump Only)
• SYSTEM SAFETIES
• SPECIAL OPERATION, HEATING
CLEANING AND MAINTENANCE
. . . . . . . . . . . . . . . . 19,20
Lubrication
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Air Filters
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
• REMOVE AIR FILTERS
• CLEAN OR REPLACE FILTERS
Clean Indoor Unit Bottom Panel
. . . . . . . . . . . . . . . . . . . .20
Clean Indoor Coil
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Clean Outdoor Coil (Outdoor Unit)
. . . . . . . . . . . . . . . . . .20
Clean Condensate Drains
. . . . . . . . . . . . . . . . . . . . . . . . . .20
• CLEAN OR REPLACE DRAIN PAN
SERVICE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Before Calling for Service
. . . . . . . . . . . . . . . . . . . . . . . . . .20
• IF SYSTEM FAILS TO OPERATE
FRESH AIR INSTALLATION OPTION
. . . . . . . . . . . . . . . .20
Ventilation-Air Accessory
. . . . . . . . . . . . . . . . . . . . . . . . . .20
TROUBLESHOOTING
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
START-UP CHECKLIST
. . . . . . . . . . . . . . . . . . . . . .CL1, CL-2
SAFETY CONSIDERATIONS
Installing and servicing air-conditioning equipment can be
hazardous due to system pressure and electrical components.
Only trained and qualified service personnel should install or
service air-conditioning equipment.
Untrained personnel can perform basic maintenance, such
as cleaning and replacing filters. All other operations should be
performed by trained service personnel. When working on air-
conditioning equipment, observe precautions in literature and
on tags and labels attached to unit.
Follow all safety codes. Wear safety glasses and work
gloves. Use quenching cloth for brazing operations. Have fire
extinguisher available. Read these instructions
thoroughly.
Consult local building codes and National Electrical Code
(NEC) for special installation requirements.
INSTALLATION
Installation instructions for fan coil units (Fig. 1) are con-
tained in this manual. Refer to this manual for proper installa-
tion of the complete system. Note that the outdoor units are
shipped with installation and service instructions for basic in-
stallation of the outdoor section. Be sure to make the connec-
tions in Cooling Only Systems and Heat Pump Systems sec-
tions on page 15 of this literature so that the unit will operate
properly.
Refer to Table 1 for proper system matches.
Before installing or servicing system, always turn off
main power to system. There may be more than one dis-
connect switch. Turn off accessory heater power if appli-
cable. Electrical shock can cause personal injury.
40QA024-060
Ceiling-Suspended Fan Coil Units
Fig. 1 — Ceiling-Suspended Fan Coil Unit
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Summary
3 Table 3A — Physical Data, Under Ceiling Cooling Only Units *Field reconfigured to 18,000 Btuh (1 1 / 2 tons). See Before Installa- tion section on this page for details. † The valve connection size is 7 / 8 inch. The recommended line size is 1 1 / 8 inch. Step 1 — Complete Pre-Installation Checks ...
4 Table 3B — Physical Data, Under Ceiling Heat Pump Units *Field reconfigured to 18,000 Btuh (1 1 / 2 tons). See Before Installa- tion section on page 3 for details. †The valve connection size is 7 / 8 inch. The recommended line size is 1 1 / 8 inch. 3. Remove inlet grilles from indoor unit by slidi...
5 Fig. 3 — Base Unit Dimensions UNIT SIZE WEIGHT (lb) A B E F G Cooling Only Heat Pump ft-in. mm ft-in. mm ft-in. mm ft-in. mm ft-in. mm 024 108 110 4- 2 15 / 16 1294 3-10 1169 4- 1 5 / 8 1260 — — 1- 9 5 / 8 549 036 117 119 4-10 13 / 16 1493 4- 5 7 / 8 1368 4- 9 1 / 2 1459 — — 2- 1 1 / 2 648 048 149...
