Service - Carrier AQUAZONE 50HQP072-120 Installation And Service Instructions Manual

LED
FAULT
CODE
1 No fault in memory
2 High-Pressure Switch
3 Low-Pressure Switch
4 Freeze Protection Coax — FP1
5 Freeze Protection Air Coil — FP2
6 Condensate overflow
7 Over/Under Voltage Shutdown
(Autoreset)
8 PM Warning
9 FP1 and FP2 Thermistors are swapped
LEGEND
FP — Freeze Protection
HP — High Pressure
LED — Light-Emitting Diode
LP — Low Pressure
PM — Performance Monitor
Table 16 — Aquazone™ Deluxe D Control Current LED Status and Alarm Relay Operations
DESCRIPTION
Normal Mode
Normal Mode with PM
Deluxe D Control is
non-functional
Test Mode
Night Setback
ESD
Invalid T-stat Inputs
No Fault in Memory
HP Fault
LP Fault
FP1 Fault
FP2 Fault
CO Fault
Over/Under Voltage
HP Lockout
LP Lockout
FP1 Lockout
FP2 Lockout
CO Lockout
LEGEND
CO — Condensate Overflow
ESD — Emergency Shutdown
FP — Freeze Protection
HP — High Pressure
LP — Low Pressure
PM — Performance Monitor

SERVICE

Perform the procedures outlined below periodically, as
indicated.
IMPORTANT: When a compressor is removed from this
unit, system refrigerant circuit oil will remain in the com-
pressor. To avoid leakage of compressor oil, the refrigerant
lines of the compressor must be sealed after it is removed.
IMPORTANT: All refrigerant discharged from this unit
must be recovered without exception. Technicians must fol-
low industry accepted guidelines and all local, state and fed-
eral statutes for the recovery and disposal of refrigerants.
Table 15 — Complete C Control LED Code and
Fault Descriptions
There has been no fault since the last power-down to power-up sequence
HP open instantly
LP open for 30 continuous seconds before or during a call (bypassed for first 60 seconds)
FP1 below Temp limit for 30 continuous seconds (bypassed for first 60 seconds of operation)
FP2 below Temp limit for 30 continuous seconds (bypassed for first 60 seconds of operation)
Sense overflow (grounded) for 30 continuous seconds
"R" power supply is <19VAC or >30VAC
Performance Monitor Warning has occurred.
FP1 temperature is higher than FP2 in heating/test mode, or FP2 temperature is higher than FP1 in cooling/
test mode.
STATUS LED TEST LED
(Green) (Yellow)
On Off
On Off
Off Off
— On
Flashing Code 2 —
Flashing Code 3 —
Flashing Code 4 —
On Off
Slow Flash Off
Slow Flash Off
Slow Flash Off
Slow Flash Off
Slow Flash Off
Slow Flash Off
Fast Flash Off
Fast Flash Off
Fast Flash Off
Fast Flash Off
Fast Flash Off
DESCRIPTION
FAULT LED (Red)
Flash Last Fault Code in Memory
Flashing Code 8
Off
Flash Last Fault Code in Memory
Flash Last Fault Code in Memory
Flash Last Fault Code in Memory
Flash Last Fault Code in Memory
Flashing Code 1
Flashing Code 2
Flashing Code 3
Flashing Code 4
Flashing Code 5
Flashing Code 6
Flashing Code 7
Flashing Code 2
Flashing Code 3
Flashing Code 4
Flashing Code 5
Flashing Code 6
NOTES:
1. If there is no fault in memory, the Fault LED will flash code 1.
2. Codes will be displayed with a 10-second Fault LED pause.
3. Slow flash is 1 flash every 2 seconds.
4. Fast flash is 2 flashes every 1 second.
5. EXAMPLE: "Flashing Code 2" is represented by 2 fast flashes fol-
lowed by a 10-second pause. This sequence will repeat continually
until the fault is cleared.
IMPORTANT: To avoid the release of refrigerant into the
atmosphere, the refrigerant circuit of this unit must only be
serviced by technicians which meet local, state and federal
proficiency requirements.
IMPORTANT: To prevent injury or death due to electrical
shock or contact with moving parts, open unit disconnect
switch before servicing unit.
26
ALARM RELAY
Open
Cycle (closed 5 sec,
open 25 sec, ...)
Open
Cycling Appropriate Code
—
—
—
Open
Open
Open
Open
Open
Open
Open (closed after 15 minutes)
Closed
Closed
Closed
Closed
Closed