York E1FB180 Wall, Loosen, Post, Screws, Crner, Serviceportswallininstalledposition, Sideview

035-16192COPPER-001-A-1001 UNITWALL		SERVICEOPPERPORTSINSHIPPINGPOSITION2SCREWS
TUBE				UNIT		CRNER
	SIDEVIEW					POST
		SERVICEPORTSWALLININSTALLEDPOSITION
		LOOSEN			2SCREWSCRNER
	SIDEVIEW	SCREWS	COPPER	UNIT
(ASSHIPPED)		PUSHSEVICE				POST
		PORTSTHOUGH		WALL	TOPVIEW
		CORNERPOST
(SERVICESIDEEXTENDEDVIEPORWTS)		TIGHTENSCREWS			(SERVICEEXTENDEDPORTS)

FIG. 5 - EXTENDING THE SERVICE PORTS

ALTERNATE CHARGING METHODS

If you are starting a unit when the ambient temperature is higher or lower than those shown in Figures 7 through 15, either of the following methods may be used.

Method 1: Determine the total weight of the refrigerant for the total system by adding the required charge for the outdoor unit, the indoor unit and the refrig- erant lines using information in Tables 2 (Physi- cal Data) and 6 (Refrigerant Line Charge).

Using the charging procedures outlined above, weigh the required amount of refrigerant charge into the unit.

Method 2: Install a field supplied moisture indicating sight glass in the liquid line between the filter-drier and the evaporator coil.

Using the charging procedure outlined above, charge refrigerant until the moisture indicating sight glass is clear. Add approximately 2 extra pounds of refrigerant to assure a liquid refrigerant seal at the expansion valve under all operating conditions. Block the flow of the condenser air, if necessary, to assure a head pressure of 280 psig during the charging procedure.

Note: The installer should return to the job to verify the operat- ing charge when the ambient temperature is within the conditions shown in Figures 7 through 15.

10 Unitary Products Group