Carrier Aquazone 50HQL User Manual

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
PC 111 Catalog No. 535-00096 Printed in U.S.A. Form 50H,V-9SI Pg 1 6-03 Replaces: 50H,V-8SI
Book 1 4
Ta b 5 a 5 a
Installation, Start-Up, and
Service Instructions
CONTENTS
Page
SAFETY CONSIDERATIONS
. . . . . . . . . . . . . . . . . . .1,2
GENERAL
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28
Step 1 — Check Jobsite
. . . . . . . . . . . . . . . . . . . . . . . . 2
Step 2 — Check Unit
. . . . . . . . . . . . . . . . . . . . . . . . . . . 2
• STORAGE
• PROTECTION
• INSPECT UNIT
Step 3 — Location of Unit
. . . . . . . . . . . . . . . . . . . . . . . 10
Step 4 — Mounting the Unit
. . . . . . . . . . . . . . . . . . . . . 10
• HORIZONTAL UNITS
• VERTICAL UNITS
Step 5 — Duct System
. . . . . . . . . . . . . . . . . . . . . . . . . . 10
• SOUND ATTENUATION
• EXISTING DUCT SYSTEM
Step 6 — Condensate Drain
. . . . . . . . . . . . . . . . . . . . . 11
• HORIZONTAL UNITS
• VERTICAL UNITS
• VENTING
Step 7 — Piping Connections
. . . . . . . . . . . . . . . . . . . 12
• WATER LOOP APPLICATIONS
• GROUND-WATER APPLICATIONS
• GROUND-LOOP APPLICATIONS
Step 8 — Electrical Wiring
. . . . . . . . . . . . . . . . . . . . . . . 12
• POWER CONNECTION
• SUPPLY VOLTAGE
• EXTERNAL LOOP POWER CONNECTION
• 208-VOLT OPERATION
• AIRFLOW AND EXTERNAL STATIC PRESSURE
Step 9 — Low Voltage Wiring
. . . . . . . . . . . . . . . . . . . . 28
• THERMOSTAT CONNECTIONS
• WATER FREEZE PROTECTION
• AIR COIL FREEZE PROTECTION
• ACCESSORY CONNECTIONS
• WATER SOLENOID VALVES
PRE-START-UP
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
System Checkout
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
FIELD SELECTABLE INPUTS
. . . . . . . . . . . . . . . 28-30
C Control Jumper Settings
. . . . . . . . . . . . . . . . . . . . 28
C Control DIP Switches
. . . . . . . . . . . . . . . . . . . . . . . 28
D Control Jumper Settings
. . . . . . . . . . . . . . . . . . . . 28
D Control DIP Switches
. . . . . . . . . . . . . . . . . . . . . . . 29
D Control Accessory Relay Configurations
. . . . . 30
START-UP
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30-32
Operating Limits
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Start Up System
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Scroll Compressor Rotation
. . . . . . . . . . . . . . . . . . . . . 31
Unit Start-Up Cooling Mode
. . . . . . . . . . . . . . . . . . . . . 31
Unit Start-Up Heating Mode
. . . . . . . . . . . . . . . . . . . . . 31
Flow Regulation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Page
Flushing
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Antifreeze
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Cooling Tower/Boiler Systems
. . . . . . . . . . . . . . . . . . 32
Ground Coupled, Closed Loop and Plateframe
Heat Exchanger Well Systems
. . . . . . . . . . . . . . . . 32
OPERATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32,33
Power Up Mode
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Units with Aquazone Complete C Control
. . . . . . . 32
Units with Aquazone Deluxe D Control
. . . . . . . . . . 32
SYSTEM TEST
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33,34
Test Mode
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Retry Mode
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Aquazone Deluxe D Control LED Indicators
. . . . . 33
SERVICE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34,35
Filters
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Water Coil
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Condensate Drain Pans
. . . . . . . . . . . . . . . . . . . . . . . . . 34
Refrigerant System
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Condensate Drain Cleaning
. . . . . . . . . . . . . . . . . . . . . 34
Air Coil Cleaning
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Condenser Cleaning
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Checking System Charge
. . . . . . . . . . . . . . . . . . . . . . . 35
Refrigerant Charging
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Air Coil Fan Motor Removal
. . . . . . . . . . . . . . . . . . . . . 35
TROUBLESHOOTING
. . . . . . . . . . . . . . . . . . . . . . . . . 36-38
Thermistor
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Control Sensors
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
START-UP CHECKLIST
. . . . . . . . . . . . . . . . . . CL-1, CL-2
SAFETY CONSIDERATIONS
Installation and servicing of air-conditioning equipment can
be hazardous due to system pressure and electrical compo-
nents. Only trained and qualified service personnel should
install, repair, or service air-conditioning equipment.
Untrained personnel can perform basic maintenance func-
tions of cleaning coils and filters and replacing filters. All other
operations should be performed by trained service personnel.
When working on air-conditioning equipment, observe precau-
tions in the literature, tags and labels attached to the unit, and
other safety precautions that may apply.
Improper installation, adjustment, alteration, service, main-
tenance, or use can cause explosion, fire, electrical shock or
other conditions which may cause 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 individ-
ual instructions packaged with the kits or accessories when
installing.
IMPORTANT: Read the entire instruction manual before
starting installation.
Water Source Heat Pump Units
50HQL,VQL
TM

Carrier Aquazone 50HQL Specifications

General

Brand	Carrier
Model	Aquazone 50HQL
Category	Heat Pump
Language	English