Carrier P4, P3 Open System Wiring Specifications and Recommended Vendors, UPC Open Controller

Table 30 — Open System Wiring Specifications and Recommended Vendors

		WIRING SPECIFICATIONS	RECOMMENDED VENDORS AND PART NUMBERS
	Wire Type	Description	Connect Air	Belden	RMCORP	Contractors
			International			Wire and Cable
		22 AWG, single twisted shielded pair, low capacitance, CL2P,
		TC foam FEP, plenum rated. See MS/TP Installation Guide for	W221P-22227	—	25160PV	CLP0520LC
	MS/TP	specifications.
Network (RS-485)		24 AWG, single twisted shielded pair, low capacitance, CL2P,
		TC foam FEP, plenum rated. See MS/TP Installation Guide	W241P-2000F	82841	25120-OR	—
		for specifications.
	Rnet	4 conductor, unshielded, CMP, 18 AWG, plenum rated.	W184C-2099BLB	6302UE	21450	CLP0442
	LEGEND
AWG	— American Wire Gage
CL2P	— Class 2 Plenum Cable
CMP	— Communications Plenum Rated
FEP	— Fluorinated Ethylene Polymer
TC	— Tinned Copper

BT485
TERMINATOR
BACNET
CONNECTION					POWER LED
Tx1 LED
Rx1 LED
Tx2 LED					BACNET
					BAUD RATE
Rx2 LED		7	8		DIP SWITCHES
	6		9
	5			0
	4			1
		3	2		ADDRESS
			8
		7			ROTARY
	6		9
	5			0	SWITCHES
	4			1
		3	2
					RUN LED
					ERROR LED

Fig. 85 — UPC Open Controller

This allows the space to be overpressurized relative to adjacent zones and prevents or slows entry of smoke into this space from adjacent zones. See Fig. 82 for wiring.

EVACUATION — Evacuation mode removes smoke or un- desirable air from interior spaces without reintroducing unsuit- able air. The factory-installed optional economizer with option/

accessory power exhaust is required for this function. Evacua- tion is accomplished by the following:

•turning the supply fan off

•opening the economizer (option required)

•running the exhaust fans (option or accessory required)

•opening the exhaust dampers.

See Fig. 82 for wiring.

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