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Retry Mode —
In Retry mode, the status LED will start to
flash slowly to signal that the control is trying to recover from
an input fault. The control will stage off the outputs and try to
again satisfy the thermostat used to terminal Y. Once the ther-
mostat input calls are satisfied, the control will continue normal
operation.
NOTE: If 3 consecutive faults occur without satisfying the
thermostat input call to terminal Y, the control will go into
lockout mode. The last fault causing the lockout is stored in
memory and can be viewed by entering Test mode.
Aquazone™ Deluxe D Control LED Indica-
tors —
There are 3 LED indicators on the D Control:
STATUS LED — Status LED indicates the current status or
mode of the D control. The Status LED light is green.
TEST LED — Test LED will be activated any time the D
control is in test mode. The Test LED light is yellow.
FAULT LED — Fault LED light is red. The fault LED will
always flash a code representing the last fault in memory. If
there is no fault in memory, the fault LED will flash code 1 on
the and appear as 1 fast flash alternating with a 10-second
pause. See Table 15.
SERVICE
Perform the procedures outlined below periodically, as
indicated.
Filters —
Filters must be clean for maximum performance.
Inspect filters every month under normal operating conditions.
replace when necessary.
Water Coil —
Keep all air out of the water coil. Check
open loop systems to be sure the well head is not allowing air
to infiltrate the water line. Always keep lines airtight.
Inspect heat exchangers regularly, and clean more frequent-
ly if the unit is located in a “dirty” environment. Keep the heat
exchanger full of water at all times. Open loop systems should
have an inverted P trap placed in the discharge line to keep
water in the heat exchanger during off cycles. Closed loop
systems must have a minimum of 105 kPa during the summer
and 275 kPa during the winter.
Check P trap frequently for proper operation.
Table 15 — Aquazone™ D Control Current LED Status and Alarm Relay Operations
LEGEND
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
followed by a 10-second pause. This sequence will repeat contin-
ually until the fault is cleared.
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.
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.
IMPORTANT: Units should never be operated with-
out a filter.
DESCRIPTION
STATUS LED
(Green)
TEST LED
(Yellow)
FAULT LED (Red)
ALARM RELAY
Normal Mode
On
Off
Flash Last Fault Code in Memory
Open
Normal Mode with PM
On
Off
Flashing Code 8
Cycle (closed 5 sec,
open 25 sec, …)
D Control is non-functional
Off
Off
Off
Open
Test Mode
—
On
Flash Last Fault Code in Memory
Cycling Appropriate Code
Night Setback
Flashing Code 2
—
Flash Last Fault Code in Memory
—
ESD
Flashing Code 3
—
Flash Last Fault Code in Memory
—
Invalid T-stat Inputs
Flashing Code 4
—
Flash Last Fault Code in Memory
—
No Fault in Memory
On
Off
Flashing Code 1
Open
HP Fault
Slow Flash
Off
Flashing Code 2
Open
LP Fault
Slow Flash
Off
Flashing Code 3
Open
FP1 Fault
Slow Flash
Off
Flashing Code 4
Open
FP2 Fault
Slow Flash
Off
Flashing Code 5
Open
CO Fault
Slow Flash
Off
Flashing Code 6
Open
Over/Under Voltage
Slow Flash
Off
Flashing Code 7
Open (closed after 15 minutes)
HP Lockout
Fast Flash
Off
Flashing Code 2
Closed
LP Lockout
Fast Flash
Off
Flashing Code 3
Closed
FP1 Lockout
Fast Flash
Off
Flashing Code 4
Closed
FP2 Lockout
Fast Flash
Off
Flashing Code 5
Closed
CO Lockout
Fast Flash
Off
Flashing Code 6
Closed
CO
—
Condensate Overflow
ESD —
Emergency Shutdown
FP
—
Freeze Protection
HP
—
High Pressure
LP
—
Low Pressure
PM
—
Performance Monitor