Carrier 25HPA6 instruction manual Accessory Usage, Liquid Rated Vapor Unit Size

25HPA6

Table 1 – Refrigerant Connections and Recommended Liquid and Vapor Tube Diameters (in.)

	LIQUID		RATED VAPOR*
UNIT SIZE
	Connection	Tube	Connection	Tube
	Diameter	Diameter	Diameter	Diameter
25HPA624	3/8	3/8	3/4	3/4
25HPA636	3/8	3/8	7/8	7/8
25HPA648	3/8	3/8	7/8	1--- 1/8
25HPA660	3/8	3/8	7/8	1--- 1/8

* Units are rated with 25 ft. (7.6 m) of lineset. See Product Data sheet for performance data when using different size and length linesets.

Notes:

1.Do not apply capillary tube indoor coils to these units.

2.For Tubing Set lengths between 80 and 200 ft. (24.38 and 60.96 m) horizontal or

20 ft. (6.1 m) vertical differential, refer to the Residential Piping and Longline Guideline using Puron refrigerant.

Table 2 – Accessory Usage

	REQUIRED FOR	REQUIRED FOR LONG LINE	REQUIRED FOR SEA
	LOW---AMBIENT COOLING
ACCESSORY		APPLICATIONS*	COAST APPLICATIONS
	APPLICATIONS
		(Over 80 ft/24.38 m)	(Within 2 miles/3.22 km)
	(Below 55°F/12.8_C)
Crankcase Heater	Standard	Standard	Standard
	Standard with Infinityt Control	No
Evaporator Freeze Protection	(Low Ambient not allowed with non ---		No
	communicating thermostat)
Liquid---Line Solenoid Valve	No	Yes	No
	Standard with Infinity Control (Low	No
Low---Ambient Control	ambient not allowed with non ---commu-		No
	nicating thermostat)
Puron Refrigerant Balance Port	Yes{	Yes{	Yes{
Hard---ShutOff TXV
Support Feet	Recommended	No	Recommended
	Standard with Infinity Control	No
Winter Start Control	(Low Ambient not allowed with non ---		No
	communicating thermostat)

*For tubing set lengths between 80 and 200 ft. (24.38 and 60.96 m) horizontal or 20 ft. (6.10 m) vertical differential (total equivalent length), refer to the Long Line Guideline—Air Conditioners and Heat Pumps using Puron® Refrigerant.

{Required on all indoor units. Standard on all new Puron refrigerant fan coils and furnace coils.

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