Operation Manual

CONNECTING A FLOW SENSOR (OPTIONAL)

The I-Core is designed to operate primarily with the Hunter HFS Flow

Sensors. However, some non-Hunter ow sensors can be used.

1. To connect a Hunter HFS Flow Sensor, route the pair of 18 AWG

(1 mm) wires from the sensor into the cabinet (max distance of

1,000 ft.).

2. Locate a pair of S1 or S2 (S3 available on I-Core Metal) sensor red and

black terminals on the Power and Accessories Terminals. Remove the

jumper wire from one pair or S1 or S2 terminals. You may use either

pair of S1 or S2 sensor terminals for a ow sensor. Connect the red

wire from the HFS to the red terminal, and the black wire from the HFS

to the black terminal.

3. I-Core allows you to connect two ow sensors at one time. In that

case, one of the ow sensors would connect to the red S1 terminal

and the black S1 terminal, while the second ow sensor would

connect to the red S2 terminal and the black S2 terminal.

NOTE: I-Core has only one Pump/Master Valve output.

If 2 ow sensors are used on 2 different points of

connection, only one of them will have a master valve

available for alarm shutdowns unless the single PMV is

congured to operate 2 master valves simultaneously.

Flow setup, learning, and conguration will be described later in the manual

under Advanced Features (pg. 22). A complete step by step Flow Monitoring

procedure is also available in the Hidden Features section (pg. 29).

NOTE: If a ow sensor is going to be connected to the

controller and ow will be monitored, there is critical

information that needs to be read in the Controller

Diagnostics and Troubleshooting section under System

Status Dashboard Flow. It is very important to

understand how the controller will monitor ow under

certain circumstances and what diagnostic testing will

be performed in alarm situations.

S1 S1 S2 S2 C C

GND AC1 AC2 REM C

P/MV

HFS

Black Wire

Hunter HFS

Red Wire