ICE AIR CHW Operating Manual

OPERATING & MAINTENANCE MANUAL

Console Hybrid Water-Cooled Air Conditioner (CHW)

World

C

lass

Comfort.

OPERATING & MAINTENANCE MANUAL – CONSOLE HYBRID WATER-COOLED AIR CONDITIONER (CHW)

REVISIONS

REV.

DESCRIPTION

BY

DATE

N/A

HYBRID C-WSHP WITH SLIDING CHASSIS CABINET

GENERAL ASS'Y

54.000

TOP VIEW

4.875

3.500

4.493

30.605

52.404

10.079

12.000

RIGHT VIEW

FRONT VIEW

FLAT TOP SLOPE TOP

26.171

MATERIAL:

WEIGHT (LBS):

151.19

FINISH:

ISOMETRIC VIEW

MOUNT VERNON, NY 10553

TITLE:

ICE-AIR LLC.

80 HARTFORD AVENUE

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OPERATING & MAINTENANCE MANUAL - CONSOLE HYBRID WATER-COOLED AIR CONDITIONER (CHW)

WELCOME

Congratulations on your selection of ICE AIR Console
Hybrid Water-Cooled Air Conditioners (CHWs) for your

comfort conditioning requirements. CHW units are combi­nation cooling and heating units, which provide an ef­ficient, room-by-room source for comfort conditioning of
your living environment.

ICE AIR WCAC units are built to a high standard of quality
and reliability, employing commercial grade components
and heavy duty, galvanized sheet metal casings. With
proper maintenance and usage, ICE AIR CHWs should
provide many years of efficient, quiet and trouble-free
comfort.

To enhance your use of your ICE AIR equipment, you will
want to read and carefully follow all of the instructions
contained in this Operating & Maintenance Manual. We
recommend that you pay special attention to the Safety
and Warning Information section at the beginning of this
Manual, and to the various safety advisories throughout
this Manual.

Please retain this Manual for your future reference. We
suggest that you retain it with other important documents
and product manuals. The information contained within
this Manual, unless noted herein, applies to all ICE AIR
CHW models. If your unit has optional features, they will
be explained in a separate instruction sheet specific to
that option.

On behalf of ICE AIR, and our network of distributors and
dealers, we are happy to welcome you to our base of
satisfied customers!

CONSUMER REFERENCE INFORMATION

We recommend that you record the following information
about your ICE AIR CHW products:

LOCATION MODEL # SERIAL #

Living Room

Master Bedroom

Bedroom

Dining Room

CONSUMER SAFETY AND OPERATING NOTES:

FOR SAFE AND OPTIMAL ENJOYMENT OF YOUR ICE AIR CHW
UNIT, PLEASE READ THE FOLLOWING CONSUMER SAFETY AND
OPERATING NOTES CAREFULLY BEFORE OPERATING YOUR
EQUIPMENT!

• This unit MUST be serviced only by professionally trained,
qualified technicians. Do NOT attempt to maintain or service
this unit on your own – severe injury and death can occur
from electric shock, moving parts, and other hazards.

• Your ICE AIR units must each be wired on an individual,
dedicated electrical circuit with the correct voltage and
proper amperage (capacity) to match the unit nameplate
requirements.

• Each unit’s electric circuit must have a proper overcurrent
protection device, employing an approved circuit breaker
or fuse of the proper rating under NEMA and local building
codes.

• Every unit contains refrigerant within a sealed and pressur­ized refrigerant system. This system must not be opened or
tampered with and any refrigeration system repairs MUST
be carried out by trained technicians. Refrigerant must be
properly handled and recycled per EPA regulations and
guidelines.

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OPERATING & MAINTENANCE MANUAL – CONSOLE HYBRID WATER-COOLED AIR CONDITIONER (CHW)

• Your ICE AIR unit must be properly installed and com-
missioned to operate correctly. Improper unit installa­tion, adjustment or commissioning, and / or improper
piping installation and connection can lead to equipment
malfunction and hazardous operating conditions, and
may void your Warranty. If you have any doubt about the
proper installation of your CHW unit, please contact your
property manager at once to have a qualified technician
inspect the equipment. Do NOT operate the equipment
when in doubt – have it inspected first!

• Your ICE AIR equipment is covered by a manufacturer’s
Warranty (see Warranty Information Sheet for full terms
and conditions). Your unit(s) must be properly installed
and kept free of obstructions. Additionally, proper clean­ing of the unit filter, evaporator coil and all air flow areas
must be maintained. Failure to do so will decrease unit
function and efficiency, and may void your Warranty.

ELECTRICAL DATA

• Ensure that available power is the same voltage and
phase as indicated on the unit serial plate. Line and volt­age wiring must be executed in accordance with local
codes or to the National Electrical Code or in Canada to
Canadian Electrical Standards (whichever is applicable).

• Apply correct line voltage to unit. Disconnect switch near
unit is required by code. Power to unit must be sized
correctly and have dual element class RK5 fuses or HACR
circuit breaker for branch circuit overcurrent protection.
Consult the unit serial plate for current ratings.

• All 208/230V units are wired for 208V operation
unless otherwise specified.

The following physical conditions must be maintained for
proper unit operation:

• Unobstructed air flow into and out of the unit room

enclosure (cabinet).

Therefore:

- Do not place furniture, rugs or objects directly in front
of, underneath or against the unit cabinet front.

- Do not place plants, fabrics or objects on top of or
blocking the enclosure discharge grille (at the cabinet
top).

- Do not block the top of the cabinet with drapes or
curtains. To ensure proper cooling and heating, drapes
and curtains should be opened or positioned so that
the air discharge from the unit does not flow behind
these window treatments.

- Have the unit filter properly cleaned and serviced to
prevent air blockage from dirt and dust within the filter
media.

• Proper installation and operating environment must be
maintained.

Therefore:

- Do not operate the unit in corrosive environments such
as chemical plants, refineries or salt spray areas.

- Operate only with proper electrical service and
protective circuit breakers or fuses in place.

- Operate only with all chassis and enclosure sheet
metal parts in place and properly installed.

- In areas of high concentrations of dirt, dust, pet dander
or pollutants, clean the filter often (at least monthly).

- Do not clean the unit with any solvents or cleaning
solutions that may damage the equipment (see
maintenance Instructions for proper cleaning
protocols).

- Understand and follow the unit operating instructions
below before using your WCAC equipment.

CONTROLS

OPERATING INSTRUCTIONS

All standard ICE AIR CHW units are equipped with unit
mounted digital controls. (If your unit has optional wall
mounted or remote controls, see the separate operating
instructions supplied with those controls). The standard
controls are located under the Air Discharge Grille at the
top of the room cabinet. Lift the Access Door, located
at the right side of the Air Discharge Grille, to access the
control panel.

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OPERATING & MAINTENANCE MANUAL - CONSOLE HYBRID WATER-COOLED AIR CONDITIONER (CHW)

ICE AIR CHW console units are controlled by a state of
the art electronic package that is comprised of a digital

control pad and an internal Power Control Board (PCB).

The large LCD display panel includes clearly marked
control buttons. The Control pad is a programmable,
user-friendly device that enables the user to program
desired temperature settings and operational modes.

LCD PROGRAMMABLE THERMOSTAT

FEATURE LIST

• Operates on 2 stage Heat and 2 stage Cool

• 7 programs (Mo, Tu, We, Th, Fr, Sa, Su) or

5-2 programs (Mo-Fr, Sa-Su)

• 4 separate Time and Temperature Settings
for each program

• Heat and Cool set-points for each program

• EPROM stores heat and cool program settings

• Temporary Program Override

• Permanent Program Override

• Compressor Short Cycle Protection

• LCD Backlighting

• Low Temperature Protection

USER INTERFACE

PUSH BUTTONS

SYMBOL PRESS HOLD

s

t

ON/OFF ON/OFF

MODE Set operation mode Internal Setting

FAN Set fan speed/

UP/Override mode UP/Permanent

Override mode

Down/
Override mode

Confirm

Down/Permanent over­ride mode

--------

--------

Operation

Normal Mode

1. Press [ON/OFF] to turn on thermostat.

2. Press [Mode] to change the system mode.

3. There are three operation modes (Cool Mode,
Heat Mode, Auto Mode).

Cool Mode

• To activate cooling mode, press the mode button until
COOL displays.

• Press up/down arrow keys to your desired temperature.

• Compressor will cycle when temperature reaches the

set-point. After compressor stops, allow at least 3
minutes before restarting (this applies only if you have
manually turned the unit off or reset the thermostat –
during normal running conditions, the unit will
automatically allow for the required restart delay).

The temperature reading that is on constant display is the
ambient room temperature.

Heat Mode

• To activate heating mode, press the Mode button until
HEAT displays.

• Press up/down arrow keys to your desired temperature.

• The unit will cycle until the set temperature is achieved

and then will continuously cycle to maintain the set
temperature.

The temperature reading that is on constant display is the
ambient room temperature

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OPERATING & MAINTENANCE MANUAL – CONSOLE HYBRID WATER-COOLED AIR CONDITIONER (CHW)

Auto Mode

EVENT TIME HEAT COOL

MON­FRI

SAT­SUN

WAKE

LEAVE

RETURN

SLEEP

WAKE

LEAVE

RETURN

SLEEP

6:00 AM

8:00 AM

6:00 PM

10:00 PM

6:00 AM

10:00 AM

6:00 PM

11:00 PM

70º F (21º C)

62º F (17º C)

70º F (21º C)

62º F (17º C)

70º F (21º C)

62º F (17º C)

70º F (21º C)

62º F (17º C)

78º F (26º C)

85º F (29.5º C)

78º F (26º C)

82º F (28º C)

78º F (28º C)

85º F (29.5º C)

78º F (26º C)

82º F (28º C)

• To activate auto mode, press the mode
button until AUTO displays.

• Press up/down arrow keys to set
desired heat temperature.

• Wait 5 seconds for cool to appear.

• Press up/down arrow keys to set desired cool

temperature.

• The unit will automatically cycle between heat and
cool modes if unit exceeds desired set points. The
temperature reading that is on constant display is the
ambient room temperature.

Internal Setting

Enter internal setting mode by pressing and holding [Mode]
key for 5 seconds

6:08

MON

WAKE

AM

Time Setting

Set Clock/Day is flashing

1. Press [Mode] key to select Edit “Clock/Day.”

2. Use [Up] and [Down] keys to adjust hours (12 hr).

3. Press [Mode] to select minutes.

4. Use [Up] and [Down] keys to adjust minutes.

5. Press [Mode] to select days.

6. Use [Up] and [Down] keys to adjust days
Press [Fan] when complete.

Daily Programming

Press [On/Off] to select Schedule
(Schedule is flashing)

1. Press [Mode] key to select Edit “Set Schedule.”

2. Use [Up] and [Down] to select Day.

3. Press [Mode] to edit time.

4. Use [Up] and [Down] to select Time.
(Adjustable in 10 minute increments)

5. Press [Mode] to edit heat setting.

6. Use [Up] and [Down] to select temperature.

7. Press [Mode] to edit cool setting.

8. Use [Up] and [Down] to select temperature.

9. Press [Mode] to set next time frame.

10. Follow the screen, and repeat steps 2 through 9 to
adjust 7 day schedule programming.

11. Press [Fan] when complete.

Below is the default program:
The default selection is 5-2 day program.

Changing Program Schedule and Temperature Limits

Press [On/Off] twice to select Settings
(Settings is flashing)

1. Press [Mode] key to select Edit “Settings.”

2. Use [Up] and [Down] to select 7 Day or 5-2 Day.

3. Press [Mode] to edit Heat Temperature Limit.

4. Use [Up] and [Down] to set temperature.

Default internal setting: Heat limit 90°F

5. Press [Mode] to edit Cool Temperature Limit.

6. Use [Up] and [Down] to set temperature.

Default internal setting: Cool limit 60°F

7. Press [Fan] when complete. The cool limit setting

should be at least 4°F higher than the heat limit

setting.

• The cool limit setting is 55°F to 95°F

• The heat limit setting is 51°F to 91°F

Exit Internal Setting and Return to Normal Mode

1. Press [Fan] to confirm and return to normal mode.

2. If no key is pressed for 15 seconds, it will return to
normal mode automatically.

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OPERATING & MAINTENANCE MANUAL - CONSOLE HYBRID WATER-COOLED AIR CONDITIONER (CHW)

Temporary Program Override

1. When thermostat is ON, the program
set-point can be temporarily overrode by pressing [UP]
or [DOWN]. “OVERRIDE” icon will turn on. Press[UP]
or [Down] to select the set-point

2. In Heat mode, Heat set-point can be adjusted.

3. In Cool mode, Cool set-point can be adjusted.

4. In Auto mode, Heat set-point will be set first and
press [UP] or [DOWN] to set the Heat set-point. Press
[Fan] to confirm the Heat set point. Cool set-point will
be set second and press [UP] or [DOWN] to set the
Cool set-point. Press [Fan] to confirm the Cool set­point.

5. Temporary Override will be cancelled if user
changes the operation mode or the unit enters
the next program time session.

Permanent Override

1. Holding [UP] and [Down] key for 2 seconds to enter
Permanent Override mode.
Permanent Override icon will turn on.

2. In Heat mode, Heat set-point can be adjusted

3. In Cool mode, Cool set-point can be adjusted

4. In Auto mode, Heat set-point will be set first and
press [UP] or [DOWN] to set the Heat set-point. Press
[Fan] to confirm the Heat set-point. Cool set-point
will be set second and press [UP] or [DOWN] to set
the Cool set-point.

5. Permanent Override will be cancelled if user
changes the operation mode or turns off the unit.

6. Hold [Fan] key 5 seconds to cancel the permanent
override mode.

Operating Specifications

• Temperature measurement
°C ~ 40°C / 32°F ~ 99°F

• Accuracy: ±0.5°C/ 1°F

• Voltage: 18-30VAC

• Temperature Controllable range:

5°C~35°C / 55°F ~ 95°F

• Resolution: 0.5°C /1°F

• Operating temperature:

0 – 50°C / 32 – 122°F

• Storage temperature:
5 – 50°C/ 23 – 122°F

MAINTENANCE & SERVICE

CAUTION: to prevent injury or death due to electrical shock

or contact with moving part, turn off the disconnect switch
before servicing this unit.

IMPORTANT NOTE: It is not the intent of this maintenance
manual to correct any installation deficiencies. If you have any
doubt about the proper initial installation (or reinstallation after
servicing) of your WCAC unit(s)- noisy or inefficient unit opera­tion, frayed or damaged electrical connections, improper unit
appearance, etc. – please contact a trained servicer or building
maintenance staff immediately.

DO NOT OPERATE ANY EQUIPMENT THAT DOES NOT APPEAR
TO BE FUNCTIONING PROPERLY!

MAINTENANCE OVERVIEW

Your ICE AIR CHW unit is designed to provide you with many
years of efficient, trouble-free comfort conditioning service. To
ensure equipment longevity and efficiency, please make sure
that the following simple maintenance procedures are followed.

This manual assumes that your CHW unit has been installed by a
qualified installation professional, and is operating properly prior
to maintenance service.

Have your unit periodically inspected by a properly trained ser­vice professional or building maintenance staff person. The unit
should be checked for the safe and proper functioning of all of its
systems at least once a year. The following recommended main­tenance procedures should be carried out only by trained person­nel with strict adherence to the safety guidelines outlined at the
beginning of this manual. These procedures MUST be followed to
ensure your safety and the safety of the person maintaining the

equipment.

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OPERATING & MAINTENANCE MANUAL – CONSOLE HYBRID WATER-COOLED AIR CONDITIONER (CHW)

FILTER

ICE AIR WCACs are equipped with a washable/reusable

Aluminum Filter. It is recommended that you clean the indoor
air filter after every 350 to 400 hours of unit operation – more
frequently if the unit is running in an environment of high dust,
pet dander or other pollutants in the indoor atmosphere.

• Filter inspection: The filter is located at
the bottom of your unit. To remove filter,
slide it out towards you.

• To reinstall, place filter under the unit
and slide back into the filter rack.

FILTER CLEANING

To clean your filter, use lukewarm water with a biodegradable
cleaner. Rinse and allow to dry completely before reinstall­ing in unit. (As an alternate cleaning method, the filter may
be cleaned on both sides using a vacuum cleaner with a soft
brush type attachment).

DO NOT OPERATE UNIT WITHOUT FILTER.
This practice will damage and/or seriously impair
the performance of your unit and could void your Warranty.

ROOMSIDE COMPONENT CLEANING

Evaporator Coil and Drain Pan / Drain Hoses

IMPORTANT NOTE: The power MUST be disconnected to the
unit before carrying out any of the following cleaning!

To access the components within the roomside section of
the unit, disconnect the power to the unit and then remove
the unit chassis front cover by unscrewing the #8 hex head
retaining screws that hold the front cover in place (use a ¼”
hex head driver). You will then have access to the following
components:

EVAPORATOR COIL

Check the coil for cleanliness and uniformity of fins. If the
coil is dirty, vacuum clean with a soft brush attachment.
This is the only form of cleaning that should be carried
out within an apartment. If the coil requires additional
cleaning, the unit must be removed from the apartment
and cleaned using compressed air and / or washed.
These operations MUST be carried out in a facility prop­erly equipped to handle this type of work in a safe and
professional manner.

DRAIN PAN / DRAIN HOSE CLEANING

The condensate pan is located directly under the
evaporator coil. Check the visible section of the interior of
the drain pan for any buildup of dirt or condensate water.
Wash annually to remove all dirt build-up. Check
condensate drain pan for algae growth every 2 to 3
months. If algae growth is apparent, consult a water
treatment specialist for treatment. The application of
algaecide every 2 to 3 months will typically eliminate
algae problems.

DRAIN HOSE

Check drain hose for leaks and blockage to eliminate
potential problems.

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OPERATING & MAINTENANCE MANUAL - CONSOLE HYBRID WATER-COOLED AIR CONDITIONER (CHW)

EVAPORATOR MOTOR AND BLOWER ASSEMBLY

If there is evidence of dirt or dust build-up in the
evaporator motor or blowers, they should be cleaned
either by vacuum cleaning (if working in an apartment)
or by removing the unit to a workshop location and
cleaning with compressed air. Always obey safety
guidelines for using compressed air in this latter case.

Your ICE AIR CHW has permanently lubricated motor
bearings that do not require additional lubrication.
Blowers and motor are factory assembled for quiet
performance – if there is any excessive noise and
vibration from this assembly, it should be serviced by
a qualified technician.

HEAT EXCHANGER

Water coil maintenance is not required. If the unit installation
is located in a system with water problem history it is best to
establish a periodic maintenance program. It is the building’s
responsibility to maintain a water system that should provide
your unit with treated and filtered water to keep water flowing
freely through your equipment.

Generally if the water flow exceeds 3 gpm per tonthe water
elocities should keep your coil free of scaling and debris that
could lead to coil erosion and fouling.

HEATING COIL

There is a hydronic heating coil (water) placed next to the
evaporator coil. When the thermostat calls for Heat, the water i
s redirected from the coaxial coil into the refrigeration circuit to
the hydronic coil.

VALVES

COMPRESSOR

Annual check should be performed to detect potential
problems.

• Amperage draw should not exceed normal
full load amps (FLA) (consult nameplate for
information.)

There are two valves: (1) Normally Closed control valve that
controls water to the coaxial coil in Cooling Model and (1)
Normally Open control valve that controls water to the hydronic
heating coil in Heating Mode. This is controlled by the logic of
the PC board.

GENERAL UNIT INSPECTION: Visually inspect unit at least

once a month. Pay special attention to hose assemblies and con­nections. Repair any leaks and replace deteriorated hose
immediately to avoid potential costly damage to your property
due to component failure.

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OPERATING & MAINTENANCE MANUAL – CONSOLE HYBRID WATER-COOLED AIR CONDITIONER (CHW)

TROUBLESHOOTING

1. If unit is not operating, conduct the following checks:

• If a flashing “A” appears on the display, contact a trained technician.

• Check the electrical connections.

• Check the voltage and current against the electrical specifications on the unit nameplate.

• Look for wiring errors. Check for loose screw connections in both line and low voltage terminals.

• Check the water supply piping for proper water connection.

• Check for dirty filters.

• Check indoor fan for proper operation.

• Check that unit did not cycle off on thermostat.

• Check for fault codes on the control board consult the trouble shooting guide.

2. If checks above fail to reveal operating problem and the unit still does not operate after reset, contact a trained service
technician to conduct full unit diagnostics and to repair the equipment.

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OPERATING & MAINTENANCE MANUAL - CONSOLE HYBRID WATER-COOLED AIR CONDITIONER (CHW)

SAFETY WARNINGS:

• MUST BE INSTALLED BY QUALIFIED, TRAINED INSTALLATION PERSONNEL

• MUST BE INSTALLED IN ACCORDANCE WITH ICE AIR INSTALLATION MANUAL

AND PROCEDURES

• MUST BE SERVICED BY QUALIFIED, TRAINED PERSONNEL

• ELECTRIC SHOCK HAZARD – DISCONNECT FROM LIVE ELECTRIC CIRCUIT

BEFORE SERVICING

• MOVING PARTS HAZARD – DISCONNECT FROM LIVE ELECTRIC CIRCUIT
BEFORE SERVICING

• UNIT MUST BE OPERATED WITH ALL CHASSIS SHEET METAL PARTS
PROPERLY IN PLACE

• UNIT MUST BE OPERATED WITH ALL ENCLOSURE (CABINET) PARTS IN PLACE

• READ THIS ENTIRE OPERATIONS MANUAL BEFORE OPERATING THE UNIT

• MUST BE OPERATED ON AN ORDERED SINGLE ELECTRICAL CIRCUIT WITH PROPER

ELECTRICAL OVERCURRENT PROTECTION

80 Hartford Avenue, Mount Vernon, NY 10553 | Tel: 877-ICE-AIR-1 (877-423-2471) | Fax: [phone] | email: [e-mail]

www.ice-air.com | © 2013 by ICE AIR, LLC

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