Carrier 90MA/MF/MU Physical Data --Refrigerant, R--22 --English Units, R--22 --Metric Units

Table 1 90MA/MF/MU Physical Data -- Refrigerant 22
		R--22 -- English Units					R--22 -- Metric Units
BASE UNIT 90MA/MF/MU	UNITS	204	206		208	212	204	206	208	212
	English (Metric)
NOMINAL CAPACITY	Tons (kW)	3	5		7.5	10	10.5	17.6	26.4	35.1
OPERATING WEIGHT
Base Unit -- 90MA/MF	Pounds (kg)	390	427		895	950	177	194	406	431
Base Unit -- 90MU	Pounds (kg)	330	360		835	890	150	163	379	404
Discharge Plenum	Pounds (kg)	25	25		50	50	11.3	11.3	22.7	22.7
COMPRESSOR TYPE		Welded	Hermetic		Semi--	Hermetic	Welded	Hermetic	Semi--	Hermetic
		Scroll			Reciprocating		Scroll		Reciprocating
Quantity of Cylinders		--	--		4	6	--	--	4	6
Quantity of Unloading Cylinders		--	--		0	2	--	--	0	2
Quantity of Capacity Steps		--	--		1	2	--	--	1	2
DISCHARGE PRESSURE SWITCH
Opens -- 90MA/MF	psig (kPa)		395￿10					2725￿69
Closes -- 90MA/MF	psig (kPa)		295￿20					2034￿138
Opens -- 90MU	psig (kPa)		426￿7					2937￿48
Closes -- 90MU	psig (kPa)		320￿20					2206￿138
SUCTION PRESSURE SWITCH
Opens	psig (kPa)		27￿4					186￿28
Closes	psig (kPa)		67￿7					462￿48
OPERATING CHARGE -- 90MA/MF	pounds (kg)	3.1	5.3		11.2	10	1.4	2.4	5.1	4.5
CONDENSER -- 90MA/MF
Number & Type						1....Tube In Tube
Water Volume	gallon (liter)	0.39	0.86		2.42		1.48	3.3	9.2
EVAPORATOR AIR FAN			Adjustable,	Belt Driven Centrifugal: 1750 RPM Motor @ 60 Hz
Nominal Flow	cfm (m3/h)	1200	2000		3000	4000	1698	2830	4245	5660
Standard Speed Range	RPM	525-750	647-915	495-700		600-850	427-652	593-762	412-583	500-708
Maximum Allowable RPM						1050
Belt Quantity / Pulley Pitch Diameter	inches (cm)	1 / 8.0	1 / 6.4		1 / 8.5	1 / 7.0	1 / 20.3	1 / 16.3	1 / 21.6	1 / 17.8
Motor Pulley Pitch Diameter Range	inches (cm)		2.4 to 3.4					6.1 to 8.6
Motor Nominal Rating(@60 Hz)...Frame Size
Standard	horse power	1/3...56	3/4...56		1...56	2...56	.25 / 56	.56 / 56	.75 / 56	1.5 / 56
Alternate (See Note 1)	horse power	3/4...56	1...56		2...56	3...56	.56 / 56	.75 / 56	1.5 / 56	2.2 / 56
Alternate (See Note 1)	horse power	----	----		3...56	----	----	----	2.2 / 56	----
EVAPORATOR COIL			3/8	(.95 cm) OD, Copper Tubes, Aluminum Fins
Tube Type						Prime
Quantity of Rows...fin Spacing	fins/inch(cm)	2...14.4	3...14.4		3...12.5		2...5.7	3...5.7	3...4.9
Face Area	sq ft (sq m)	5	5		7.3	8.5	0.46	0.46	0.68	0.79
RETURN AIR FILTERS					Factory Supplied, Cleanable
Quantity...Size	inches (cm)	2...16 x 25 x 1			4...16 x 20 x 1		2...40.6x63.5x2.5		4...40.6x50.8x2.5
CONDENSER CONNECTIONS
Water Inlet (bottom) & Outlet (top)	inches FPT	1/2	3/4		1	1	1/2	3/4	1	1
Maximum Working Pressure (refrigerant side)	psig (kPa)		400					2758
CONDENSATE DRAIN CONNECTIONS	inches FPT		3/4					3/4
ACCESSORY HEATING COILS
HOT WATER
Quantity of Rows...fin spacing	fins/inch(cm)	1...15	1...15		2...14	2...14	1...5.9	1...5.9	2...5.5	2...5.5
Face Area	sq ft (m)	5	5		6	6	0.46	0.46	0.56	0.56
Water Inlet (top) & Outlet Connection (bottom)	inches (cm)	7/8	ODF		1--1/4	MPT	7/8	ODF	1--1/4	MPT
STEAM
Quantity of Rows...fin spacing	fins/inch(cm)	See Note 2			1...14	1...14	See Note 2		1...5.5	1...5.5
Face Area	sq ft (m)	See Note 2			6.9	6.9	See Note 2		0.64	0.64
Water Inlet (top) & Outlet Connection (bottom)	inches (cm)	See Note 2			1--1/4	MPT	See Note 2		1--1/4	MPT
LEGEND
FPT = Female Pipe Thread MPT = Male Pipe Thread		ODF = Outside Diameter Female

NOTES:

1.Motors and drives other than those furnished with unit must be purchased separately. Contact your Carrier Transicold represen- tative.

2.Accessory heating coil in 004 and 006 units is combination hot water/steam. See hot water data.

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