Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. IIK-CRCNDOVR-01
Printed in U.S.A.
Form IIK-CRCNDOVR-01
Pg 1
8-16
Replaces: New
Installation Instructions
Part No. CRCNDOVR003A00
SAFETY CONSIDERATIONS
Installation, start-up, and servicing of air-conditioning
equipment can be hazardous due to system pressures and elec-
trical components, and equipment location (roofs, elevated
structures, etc.). Only trained and qualified service personnel
should install, repair, or service air-conditioning equipment.
Untrained personnel can perform the basic maintenance func-
tions. All other operations should be performed by trained service
personnel. When working on air-conditioning equipment, ob-
serve precautions in the literature and on tags, stickers, and labels
attached to the unit, and other safety precautions that may apply.
• Follow all safety codes.
• Wear safety glasses and work gloves.
• Utilize Lockout/Tagout procedures.
• Use care in handling and installing this accessory.
Recognize safety information. This is the safety-alert sym-
bol
. When you see this symbol on the unit and in instruc-
tions or manuals, be alert to the potential for personal injury.
Understand the signal words DANGER, WARNING, and
CAUTION. These words are used with the safety-alert symbol.
DANGER identifies the most serious hazards which
will
result
in severe personal injury or death. WARNING signifies a haz-
ard which
could
result in personal injury or death. CAUTION
is used to identify unsafe practices which
may
result in minor
personal injury or product and property damage. NOTE is used
to highlight suggestions which
will
result in enhanced installa-
tion, reliability, or operation.
INTRODUCTION
The condensate overflow switch accessory kit includes an
electronic controller and sensor for use in 3-15 ton light com-
mercial rooftop units. The sensor can be used in downflow or
side discharge units. The control module is wired to turn off the
compressor(s) after 10 seconds of constant water contact if the
drain trap becomes plugged. It requires 5 minutes to reset after
the water has cleared. See Table 1 for control logic.
PRE-INSTALLATION
Remove accessory packaging and inspect shipment for
damage. See Table 2 for kit contents. File claim with shipping
company if accessory is damaged. Verify unit is level and ad-
just if necessary. See Table 3 for model usage.
With all Carrier direct digital controls (DDC) such as RTU
Open, PremierLink™,
Comfort
Link, and SystemVu™ con-
trols, no alarms or alerts will be initiated based on this conden-
sate overflow switch. In the event of a condensate overflow sit-
uation, compressors will shut down, any supply fans will con-
tinue operation, and no alarms will be communicated via the
unit controller to any connected networks.
Table 1 — Control Logic
Table 2 — Accessory Kit Contents
Table 3 — Model Usage
WARNING
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal
injury and/or death.
Before beginning any modification, be certain that the
main-line electrical disconnect switch is in the OFF posi-
tion. Close the main gas supply shutoff valve. Tag discon-
nect switch and gas valve with suitable warning labels.
POWER
SENSOR
RELAYS
LIGHT
OFF
DRY
OPEN
OFF
OFF
WET
OPEN
OFF
ON
DRY
CLOSED
OFF
ON
WET
OPEN
ON
ON
DRY TO WET
OPEN AT 10 SEC.
ON AT 10 SEC.
ON
WET TO DRY
CLOSED AT 5 MIN.
OFF AT 5 MIN.
ON
DISCONNECTED
OPEN
BLINKS
ITEM
DESCRIPTION
QTY
PART NUMBER
1
INSTRUCTIONS
1
IIK-CRCNDOVR-01
2
CONTROLLER, CONDENSATE
1
HL39ZZ008
3
SCREWS, #6 x 3/8"
2
AC41AB080
4
SENSOR, 90" CONDENSATE
1
HL39ZZ009
5
BRACKET
1
48TM503400
6
SCREWS, BRACKET, #10 x 5/8"
2
AL48AM217
7
TIES, WIRE
10
Field Supplied
ACCESSORY PART
NUMBER USAGE
MODEL
SIZE
CRCNDOVR003A00
48/50HC
04-14
48/50KC
04-06
48/50TC
04-16
48/50LC
04-12
50HCQ
04-12
50KCQ
04-06
50TCQ
04-14
580J/558J
04-16
581J/551J
04-14
582J/559J
04-06
547J
04-06
548J
04-14
549J
04-12
RGH/RAH
036-150
RGS/RAS
036-180
RGX/RAX
036-060
RHH
036-120
RHS
036-150
RHX
036-060
WARNING
To avoid the possibility of electrical shock, open all dis-
connects before installing or servicing this accessory.
Small Rooftop Units
Accessory Condensate Overflow Switch
3 to 15 Tons
50/60 Hz
