Carrier 06D specifications Pressure Change Affecting, Switch Type Switch Position, Closed

Table 2A — 06D Physical Data

UNIT 06D	A8081	H3131	A8181			E8251	E3281	E5371
OPERATING WEIGHT (lb)	180	250	265			325	325	330
REFRIGERANT			R-134a, R-22, R-507/404A
COMPRESSOR — 06D*	M808	M313	A818			A825	A328	A537
Cylinders	2	4	4			6	6	6
Bore (in.)	2	2	2			2	2	2
Stroke (in.)	11/4	1	17/16			11/4	115/32	115/16
Displacement (cfm at 1750 rpm)	8	13	18.3			23.9	28	37.1
Maximum Rpm					1750
Oil Charge (pt)	3	4.5	5.5			8	8	8
High Side Maximum Pressure				450		PSIG
Low Side Maximum Pressure				245 PSIG
CONNECTIONS (in.)
Suction Valve (ODF)	7/8	7/8	11/8			13/8	13/8	13/8
Discharge Valve (ODF)	5/8	5/8	7/8			7/8	7/8	11/8

*Compressors listed are for R-22 applications. For R-134a and R-507/ 404A an 06DR compressor is standard. Factory compressor substitutes may be made. Contact Carrier Sales Representative.

→NOTE: The 06DE8251 compressor unit with the 06DA825 compressor replaces the 06DE8241 once inventory of the 06DA824 compressor is depleted.

Table 2B — 07D Physical Data

UNIT 07D		A203	B205	A208		B210	B212	B215
OPERATING WEIGHT (lb)		270	395	420		545	595	620
REFRIGERANT				R-134a, R-22, R-507/404A
COMPRESSOR — 06D*		M808	M313	A818		A825	A328	A537
Cylinders		2	4	4		6	6	6
Bore (in.)		2	2	2		2	2	2
Stroke (in.)		11/4	1	17/16		11/4	115/32	115/16
Displacement (cfm at 1750 rpm)		8	13	18.3		23.9	28	37.1
Maximum Rpm					1750
Oil Charge (pt)		3	4.5	5.5		8	8	8
High Side Maximum Pressure					450	PSIG
Low Side Maximum Pressure					245 PSIG
CONDENSER (Shell and Tube)† Part Number		P701-0605CX	P701-0607CX	P701-0610CX		P701-0615CX	P701-0620CX	P701-0625AX
Refrigerant Storage	R-134a	17.20	15.90	24.40		31.60	27.40	39.80
		2.86	3.16	5.00		7.55	8.47	9.18
Capacity (lb)
	R-22	17.00	15.70	24.10		31.20	27.10	39.30
Min Refrigerant Operating		2.80	3.10	4.90		7.40	8.30	9.00
		14.70	13.60	20.90		27.10	23.50	34.10
Charge (lb)	R-507/404A
		2.80	3.10	4.90		7.40	8.30	9.00
REFRIGERANT CONNECTION (in. ODF)
Inlet		15/8	15/8	15/8		15/8	15/8	15/8
Outlet		11/8	11/8	11/8		11/8	11/8	11/8
WATER CONNECTION (in. FPT)
Inlet/Outlet		1	1	11/4		11/4	11/4	2

LEGEND

FPT — Female Pipe Thread

ODF — Outside Diameter, Female

*Compressor listed is the standard compressor for R-22, air conditioning duty. An 06DR compressor is standard equipment for low temperature (R-507/404A) or medium temperature (R-134a) applications. Factory substitutions may be made. Contact Carrier Sales Representative.

†The condenser listed is for R-22, air conditioning duty and may change based on the application. Maximum condenser operating pressure: 350 psi refrigerant side, 300 psi water side (“CX” models); 350 psi refrigerant side, 150 psi water side (“AX” models).

→NOTE: The 07DB210 with the 06DA825 compressor replaces the 07DB210 with the 06DA824 once the compressor inventory is depleted.

Table 3 — Factory Switch Settings

	PRESSURE CHANGE AFFECTING
SWITCH TYPE		SWITCH POSITION
		Closed		Open
High Pressure	210	(±10) (psig)	290	(±10) (psig)
Low Pressure	70	(±4) (psig)	60	(±4) (psig)
Oil Pressure		6 (psid)	11 (psid)

LEGEND

psid — pounds per square inch differential psig — pounds per square inch gage

NOTES:

1.Values for the high- and low-pressure switches based on R-22. For other refrigerants, reset to pressure corresponding to satura- tion temperatures indicated by the listed pressures.

2.Values for oil pressure are above operating suction pressure (pressure differential between suction and discharge pressures of oil pump).

CAPACITY CONTROL (Suction Cutoff Type)

Control Set Point (Cylinder Load Point) — Set point is adjustable from 0 to 86 psig. Pressure differential between cylinder load-up point and cylinder unload point is adjustable from 7 to 19 psi.

To Regulate Control Set Point — Refer to Fig. 7. Turn adjustment nut clockwise to its bottom stop (with nut in this position, set point is 86 psig). Control set point is then regulated to desired pressure by turning adjustment nut coun- terclockwise. Every full turn decreases set point by 7.2 psi. Approximately 12 turns in counterclockwise direction will de- crease control set point to 0 psig. Table 4 shows steps of control for the compressor and condensing unit.

Pressure Differential Adjustment — Turn differ- ential adjusting screw counterclockwise to its back-stop posi- tion (differential in this position is 7 psi). Pressure differential is set by turning adjustment screw clockwise. Every full turn increases differential by 1.2 psi. Approximately 10 turns in clockwise direction will increase pressure differential to 19 psi.

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