Carrier CRCNDOVR003A00 Installation Instructions Manual

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.
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.
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.
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
Accessory Condensate Overflow Switch

Installation Instructions

Part No. CRCNDOVR003A00
Printed in U.S.A. Form IIK-CRCNDOVR-01
Small Rooftop Units
With all Carrier direct digital controls (DDC) such as RTU
Open, PremierLink™, ComfortLink, 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
POWER SENSOR
OFF DRY
OFF WET
ON DRY
ON WET
ON DRY TO WET
ON WET TO DRY
ON DISCONNECTED
Table 2 — Accessory Kit Contents
ITEM DESCRIPTION
1 INSTRUCTIONS
2 CONTROLLER, CONDENSATE
3 SCREWS, #6 x 3/8"
4 SENSOR, 90" CONDENSATE
5 BRACKET
6 SCREWS, BRACKET, #10 x 5/8"
7 TIES, WIRE
Table 3 — Model Usage
ACCESSORY PART
NUMBER USAGE
CRCNDOVR003A00
WARNING
To avoid the possibility of electrical shock, open all dis-
connects before installing or servicing this accessory.
Pg 1
3 to 15 Tons
50/60 Hz
RELAYS LIGHT
OPEN OFF
OPEN OFF
CLOSED OFF
OPEN ON
OPEN AT 10 SEC. ON AT 10 SEC.
CLOSED AT 5 MIN. OFF AT 5 MIN.
OPEN BLINKS
QTY PART NUMBER
1 IIK-CRCNDOVR-01
1 HL39ZZ008
2 AC41AB080
1 HL39ZZ009
1 48TM503400
2 AL48AM217
10 Field Supplied
MODEL SIZE
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
8-16 Replaces: New