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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. The heat

exchanger should be kept 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 15 PSI during

the summer and 40 PSI during the winter.

Check P trap frequently for proper operation.

Condensate Drain Pans —

Check condensate drain

pans for algae growth twice a year. If algae growth is apparent,

consult a water treatment specialist for proper chemical treat-

ment. The application of an algaecide every three months will

typically eliminate algae problems in most locations.

Refrigerant System —

Verify air and water flow rates

are at proper levels before servicing. To maintain sealed circuit-

ry integrity, do not install service gauges unless unit operation

appears abnormal.

Condensate Drain Cleaning —

Clean the drain line

and unit drain pan at the start of each cooling season. Check

flow by pouring water into drain. Be sure trap is filled to main-

tain an air seal.

Air Coil Cleaning —

Remove dirt and debris from evap-

orator coil as required by condition of the coil. Clean coil with

a stiff brush, vacuum cleaner, or compressed air. Use a fin

comb of the correct tooth spacing when straightening mashed

or bent coil fins.

Condenser Cleaning —

Water-cooled condensers may

require cleaning of scale (water deposits) due to improperly

maintained closed-loop water systems. Sludge build-up may

need to be cleaned in an open water tower system due to

induced contaminants.

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.

IMPORTANT: To avoid fouled machinery and extensive

unit clean-up, DO NOT operate units without filters in

place. DO NOT use equipment as a temporary heat source

during construction.

Table 26 — Aquazone™ Deluxe 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 continually until the
fault is cleared.

DESCRIPTION

STATUS LED

(Green)

TEST LED

(Yellow)

FAULT LED (Red)

ALARM RELAY

Normal Mode

Off