Emerson E2 operation manual Power Module Wiring, Valve Cable, Pulse Valve

tions.

The Hand-held Terminal jack also doubles as a service pin, used when commissioning a CC-100. Plugging the Hand-held Terminal into a CC-100 sends the special Eche- lon ID number to the E2.

9.3.2Power Module Wiring

CC-100s are powered by 24VAC Class 2 power, which is supplied by a Emerson Retail Solutions power module.

The case power module should be connected to either a 120 VAC or 240 VAC single phase power source (which- ever is necessary for the model ordered). Complete wiring of the case controller power module, including lights, fans, defrost, and anti-sweat heaters, is diagrammed in Figure 9-16. Follow all local, NEC, and UL wiring practices.

Power is supplied to the CC-100 via the output cable harness.

Figure 9-16- Case Controller and Defrost Power Module Wiring Schematic

9.3.3Valve Cable

The six-pin connector on the right-hand side of the

CC-100 is where the liquid stepper or suction stepper must be connected. The CC-100 uses this connection to control the stepper motors and change the position of the valve aperture.

All valve cable harnesses have a six-pin male connec- tor that plugs into the CC-100’s VALVE port. Plug this connector in so that the tab on the top of the connector is facing up.

For instructions on connecting the valve cable to the pulse or stepper valve, refer to the instructions below for

the appropriate cable type.

P/N 335-3263 (Pulse Valve)

Figure 9-17shows the connections for pulse valve 1 and pulse valve 2. The pulse valve 2 leads (BLACK/ GREEN) may be clipped if a second evaporator is not present on the case.

Figure 9-17- Wiring the 335-3263 Valve Cable

P/N 335-3261 (Sporlan SEI and Emerson Flow Con- trols ESR Stepper Valve)

The 335-3261 valve cable is equipped with a four-pin male connector that plugs into a four-pin female connector on the valve. Plug the valve cable connector into the valve connector.

P/N 335-3260 (Generic Stepper and Emerson Flow Controls ESV Valve)

The 335-3260 valve cable has six flying leads for con- nection to a stepper valve. Four of these leads connect to the stepper motors, while the other two serve as the power wiring (+12VDC and ground).

The pinout for this valve cable is shown in

Figure 9-18. Table 9-5shows how to hook the flying leads to Emerson Flow Controls ESR, Emerson Flow Controls ESV, and Sporlan SEI & CDS valves.

Figure 9-18- Wiring the 335-3260 Generic Stepper Valve

CC-100 Case Controllers Input and Output Setup • 9-17