Next Steps - Watts AERCO CFR 3000 Installation And Start-Up Manual

SECTION 2: INSTALLATION
2. Find the grey cable inside the unit's enclosure with the unused Molex connector with a cap
containing a jumper wire inserted in it (the jumper wire allows units that do not have a
sequencing isolation valve to operate normally). The other end is connected to the I/O board
and to a power supply.
CAP
JUMPER
Figure 2-18: Sequencing Isolation Valve Molex Connector and Jumper Wire
Isolation Valve Harness
Wire #
1236
1237
1238
1239
1240
1241
3. Remove and dispose of the cap with jumper wire attached.
4. Plug the Molex connector into the sequencing isolation valve's connector.
5. When the Sequencing Isolation Valve is used, the Controller's Auxiliary Delay setting must
be set to 120 seconds. Go to Main Menu → Advanced Setup → Ancillary Device →
Interlocks and set the Auxiliary Delay setting to 120.
Figure 2-19: Interlocks Screen – Auxiliary Delay Parameter

2.15 Next Steps

Once the unit is physically installed per the instructions above, the next step is to start the unit for the
first time and perform the combustion calibration procedure. For instructions, see the CFR-Edge [i]
Operation and Service Manual, OMM-0164, Section 4: Initial Startup.
•
Color Signal
Black 24V Common
Red 24V Hot
White Valve analog input
Green Valve analog feedback
Black
Delayed interlock
Black
•
MOLEX CONNECTOR
•