Amtrol GUARDIAN CP DC2 User Manual
West Warwick, Rhode Island 02893
INSTALLATION, OPERATION
& MAINTENANCE
INSTRUCTIONS
Guardian CP
™
Digital Pump Control
Model DC2
Your DC2 DIGITAL CONTROL has been carefully assembled and factory tested. To enjoy
the full service this unit can provide, you should read and follow all of the instructions in this
manual. When all installation steps have been completed, make sure you also follow the
enclosed post-installation and startup checklists before using your AMTROL® product. You
should also read carefully the sections describing proper product maintenance and follow
the required procedures as you use your DC2 DIGITAL CONTROL. Keep this manual with the
product. This manual may become out-of-date by later amendments. Check our web site,
www.amtrol.com or ask your AMTROL® supplier for any updates relating to your product.
THIS IS THE SAFETY ALERT SYMBOL. IT IS USED TO ALERT YOU TO
POTENTIAL PERSONAL INJURY AND OTHER HAZARDS. OBEY ALL
SAFETY MESSAGES THAT FOLLOW THIS SYMBOL TO REDUCE THE
RISK OF POSSIBLE INJURY AS WELL AS PROPERTY DAMAGE.
INSTALLER: LEAVE THIS MANUAL WITH THE OWNER
Patent Pending
Part # 9046-0001 (09/10)
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INSTALLATION INSTRUCTIONS
Drain
Va lve
Relief Va lve
DC2
INSTALLATION ON TYPICAL TANK TEE
Fig. 1
Pipe Nipple Plug
GENERAL IN-LINE INSTALLATION
Tee
Adapt as necessary
Pipe Nipple
Relief Va lve
DC2
Fig. 2
Unit Must be Installed by a Qualified Professional
PLUMBING CONNECTION
1. Select a location for the DC2. The DC2 should be mounted near the pressure tank or
pump, depending upon the installation
LOCATE THE DC2 FOLLOWING ALL LOCAL CODES. DO NOT
LOCATE THE UNIT WHERE IT CAN BE AFFECTED BY FLOODING.
2. You may assemble the DC2 to a “Tank Tee” or “Tank Cross” (Figure 1) or adapt
the unit to an in-line pipe fitting (Figure 2). Use Teflon sealing tape or pipe sealant.
Tighten the DC2 using the wrench flats provided on the bottom connection. DO NOT
EXCEED 15LB./FT. of torque.
Note: Do not allow pipe sealant or other contaminants to enter the small port in the DC2
connection.
Note: A mechanical pressure gauge is not required. Use the appropriate plug to block
any unused ports.
ELECTRICAL CONNECTION
ELECTROCUTION HAZARD. FIRST DISCONNECT ALL
ELECTRICAL POWER BEFORE SERVICING.
ELECTROCUTION HAZARD. THE DC2 MUST BE ELECTRICALLY
GROUNDED.
NOTE: The DC2 will operate on 115 VAC & 230 VAC systems. Its ambient air temperature
rating is 122°F / 50°C.
1. Disconnect power and verify with a volt meter.
2. Determine the pump electrical requirements. If unknown, contact the pump
2
manufacturer.
3. Select the appropriate wire gauge per local codes and the pump manufacturer’s
recommendation.
4. Loosen the screw on the cover of the controller and remove the plastic cover, exposing
L1
L2 YBR
Guardian CP™
LINE IN
3-WIRE, SINGLE PHASE CONTROL BOX
TO
MOTOR
Black
Blue
White
White
w/Black
L1
L2 L3
Guardian CP™
TO MOTOR
CONTACTS
TYPICAL 3-PHASE CONTROL BOX
FUSES
Black
Blue
White
White
w/Black
COIL
LINE
LOAD
LINE
LOAD
Fig. 3
Guardian CP™
BASIC WIRING
Black
Blue
White
White
w/Black
the wiring pigtails. (When reassembling cover, do not over-tighten screw.)
5. The wire conduit hub is to be connected to the conduit before the hub is connected
to the enclosure. The maximum hub diameter cannot exceed 1.15". Larger hub will
interfere with cover closure.
6. The opening of the enclosure shall be closed with hubs rated 3, 3S, 3SX, 3X, 4, 4X, 6
or 6P.
NOTE: Steps 5 and 6 are required for outdoor installations only.
7. Following all electrical codes, wire the DC2 using the wiring diagram below (Figure 3).
NOTE: The DC2 has openings to accept standard conduit terminations. Outdoor
installations must use watertight connections.
UNIT MUST NOT BE SUPPORTED SOLELY BY THE ELECTRICAL
CONDUIT.
WATERTIGHT CONDUIT CONNECTIONS MUST BE USED WHEN
EXPOSED TO DIRECT WEATHER, MOISTURE OR HIGH HUMIDITY.
ELECTRICAL BONDING BETWEEN CONDUIT CONNECTIONS IS
NOT AUTOMATIC AND MUST BE PROVIDED AS PART OF THE
INSTALLATION. BONDING KIT, PART #146-2350 CAN BE ORDERED SEPERATELY.
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