Preparing for the Installation of the Water Source Console Units
WARNING
Moving parts can cause personal injury. Avoid contact with
moving parts when testing or servicing the unit.
e existing front panels must be secured by screws that prevent
contact with all parts.
Minor dimensions of openings must not exceed ½ inch
(12.5mm).
eindoorairdischargegrillmusthavedimensions notlessthan
26” x 4”. e grill must separate the top surface of the chassis
from the top surface of the discharge grill by a minimum of 1
in (25.4mm).
Electrical supply
Each unit must have a separate branch circuit protected by a fuse
or breaker. Refer to the unit rating plate for the proper wire and
breaker or fuse size. Use of extension cords is prohibited.
DO NOT connect the RetroAire unit to a circuit with an
incorrectly-sized overcurrent-protection device.
All cord-connected 265-volt units must be plugged into recep-
tacles within the unit subbase or chassis.
Electrical shock hazard — Before opening the existing
unit:
Open the power supply disconnect switch. Secure it in an open
position during installation. Aach a sign stating, "
DO NOT
TURN ON.
"
On a plug and receptacle connection, unplug the existing unit at
the wall outlet. DO NOT plug in the new unit until installation is
complete and the start-up checklist has been completed.
Failure to comply with the above could result in severe personal
injury, death or substantial property damage.
NOTICE
Remove the old chassis
Disconnect power or unplug cord before proceeding.1.
See WARNING at le.
Remove the cabinet from the old chassis.2.
Disconnect water supply to coil.3.
Disconnect condensate drain piping4.
Remove any fasteners holding the old chassis to the sub base or5.
wall and remove the chassis.
NOTICE
Dispose of the old chassis following existing state and federal
regulations.
See the instructions for the specic RetroAire unit on the fol-1.
lowing pages.
DO NOT2. connect power to the unit or plug in the cord until all
instructions in this manual have been followed.
INSTALLATION
Put the new chassis in the same place where the old chassis1.
stood, and secure it to the subbase or wall as the older unit was
secured.
Pipethenew chassiswiththesame hoses(checkthehosefor cracks2.
and/orbrileness,replacewithnewhoses ifanydamage is found).
If the unit is to be hard piped, there should be union between the
unit and the hand shut o valve for service or removal of the unit.
Connect condensate tube, and route to an adequate drain.
Plug the line cord into the receptacle. If hard wired; connect3.
power wiring to unit wires in the J-box.(See wiring diagram on
unit). Wiring must be made in accordance with NEC and local
codes.Follow the instructions on page 9 to verify existing wiring
and overcurrent protection. Remove the line cord wires from the
Water Source Console Units power entrance terminals. Route the
power supply wiring through a strain-relief bushing and connect
leads to the power entrance terminals. Secure the strain-relief
clamp. (If wiring is through conduit, insert the conduit through
the control box knockout and secure in place.) DO NOT turn
on power until completing instructions in "Final Inspection and
Startup" on page 14.
Open water valves. Bleed air from the water lines with the air4.
vent(if used) or by uncoupling the return water line allow any
air to escape. If the water appears dirty the entire water system
should be ushed with the proper cleaners to obtain a PH value
of 7 or 8. Exercise caution if any sort of glycol(antifreeze) is be-
ing used when cleaning the system. Be careful not to let this uid
get on any carpeting ect. It is best to use trained personnel to do
this type of work.
DO NOT PLUG IN the line cord, if in used condition5. .Follow
instructions in "Final Inspection and Startup" on page 14.
All wiring should be in accordance with both the National Electric
Code (NEC) and the local building codes.
Electrical power connection
Check the RetroAire unit rating plate for circuit ampacity and1.
required breaker or fuse size.
Verify that the existing breaker or fuse is the correct size.2.
Replace the breaker or fuse if incorrectly-sized.a.
Breakers must be type HACR only.b.
Cord-connected units — verify that the wall outlet is the cor-3.
rect rating. e outlet's blade conguration must match that
of the cord supplied with the RetroAire unit.
Hard-wired units — verify that the power wiring is correctly4.
sized. Inspect the existing wiring for any deciencies, such as
cuts or frayed wires. Replace such wiring if found. Refer to the
units wire diagram for wire connections.
Water Source Console Units
• Installation, Operation, and Maintenance Manual •
P/N 240008071, Rev. B [112309] 9Made in USA
