Carrier 90MA, 90MU FPT = Female Pipe Thread MPT = Male Pipe Thread, ODF = Outside Diameter Female

TABLE 2B - 90MA/MU PHYSICAL DATA – R-407C , SI UNITS

BASE UNIT (90MA/MU)		UNITS	404		406		408		412
NOMINAL CAPACITY		kW	10.5		17.6		26.4		35.1
REFRIGERANT					R-		407C
OPERATING WEIGHT
	Base unit 90MA	kg	177		194		406		431
	Base Unit 90MU	kg	150		163		379		404
	Discharge Plenum	kg	11.3		11.3		22.7		22.7
COMPRESSOR TYPE			Scroll				Semi-Hermetic, Recip
	Qty Cylinders		N/				4		6
	Qty Unloading Cylinders		N/				0		2
	Qty Capacity Steps		1				1		2
DISCHARGE	PRESSURE SWITCH
	Opens (90MA)	kPa			2725+/-69
	Closes (90MA)	kPa			2034+/-138
	Opens (90MU)	kPa			2937+/-48
	Closes (90MU)	kPa			2206+/-138
SUCTION	PRESSURE SWITCH
	Opens	kPa			186+/-28
	Closes	kPa			462+/-48
REFRIGERANT
	Typ				R-		407C
	Qty (90MA ONLY))	kg	1.4		2.4		5.1		4.5
CONDENSER (90MA ONLY)
	Number...Type				1…Tube		in Tube
	Water Volume	Liter	1.48		3.3			9.2
EVAPORATOR AIR FAN			Adjustable, Belt Driven Centrifugal: 1750 RPM Motor@60hz
	Nominal Flow	m3/hr	1698		2830		4245		5660
	Standard Speed Range	RPM	534-757		534-757		402-570		488-692
	Maximum Allowable Speed	RPM				1250
	Belt Qty/Pulley Pitch Diameter	cm	1 / 16.3		1 / 16.3		1 / 21.6		1 / 17.8
	Motor Pulley Pitch Diameter Range	cm			6.1 to		8.6 cm
	Motor Nominal Rating (@ 60Hz)…Frame Size
	Standard	kW	0.25…56		0.56…56		0.75…56		1.5…56
	Alternate (SeeNote 1)	kW	0.56…56		0.75…56		1.5…56		2.2…56
	Alternate (See Note 1)	kW	N/		N/		2.2…56		N/
EVAPORATOR COIL			3/8 OD, Copper Tubes, Aluminum Fin
	Tube					Prime
	Qty Rows…Fin Spacing	Fins/cm	2…5.7		3…5.7			3…4.9
	Face Area	m2	0.46		0.46		0.68		0.79
RETURN	AIR FILTERS			Factory Supplied, Cleanable
	Qty…Size	cm	2…40.6 x 63.5 x 2.5				4…40.6 x 50.8 x 2.5
CONDENSER CONNECTIONS (90MA ONLY)
	Water Inlet (bottom)	Inches FPT	1/2		3/4		1		1
	Water Outler (top)	Inches FPT	1/2		3/4		1		1
	Maximum Working Pressure (Refrigerant Side)	kPa				2758
CONDENSATE DRAIN CONNECTIONS		Inches FPT				3/4
ACCESSORY ELECTRIC HEAT
	Capacity @ 460 volts	kW	5.25					17.5
	Capacity @ 400 volts	kW	4.03					13.4
	Number of Electric Heat Stages		1					2
LEGEND
FPT = Female Pipe Thread MPT = Male Pipe Thread		ODF = Outside Diameter Female

NOTES:

1. Motors other than those furnished with unit must be purchased separately. Contact your Carrier Marine representative

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations

Printed in U.S.A. Pg 6 90MA-3SI SUPERCEDES FORM 62-02971-00 09-2009