Carrier NP034-074 specifications A Ð Physical Data; 034, 044 Units

Table 1A Ð Physical Data; 034, 044 Units

BASE UNIT*			034			044
NOMINAL CAPACITY (tons)			30			40
OPERATING WEIGHT (lb)
Base Unit
48 Series, Low Heat			5641			6541
48 Series, High Heat			5770			6670
50 Series, Horizontal Discharge			5970			6620
50 Series, Vertical Discharge			5400			6050
With Economizer
48 Series, Low Heat			5941			6841
48 Series, High Heat			6070			6970
50 Series, Horizontal Discharge			6270			6920
50 Series, Vertical Discharge			5700			6350
COMPRESSORS				Semi-Hermetic
Quantity...Type			2...06D			2...06E
Capacity Steps (%)		17, 33, 50, 66, 83, 100			25, 50, 75, 100
Number of Refrigerant Circuits			2			2
REFRIGERANT
Operating Charge (lb), Sys 1/Sys 2			29.0/29.0			40.0/40.0
Without Hot Gas Bypass
With Hot Gas Bypass			31.0/29.0			42.0/40.0
CONDENSER COILS				3¤8-in. Tube Diameter
Quantity			2			2
Rows...Fins/in.			3...15.0			3...15.0
Aluminum
Copper (Optional)			3...13.7			3...13.7
Total Face Area (sq ft)			37.5			50.0
EVAPORATOR COILS				1¤2-in. Tube Diameter
Quantity			1			2
Rows...Fins/in.			3...15.0			3...15.0
Total Face Area (sq ft)			32.1			45.5
Refrigerant Feed Device...No. per Circuit			TXV...1			TXV...2
HEATING SECTION (48 Series Units Only)		Low Heat		High Heat	Low Heat		High Heat
Number of Heat Exchangers		6		12	6		12
Input (MBtuh)		264		529	264		529
Output (MBtuh)		211		423	211		423
Temperature Rise Range (F)		0-30		15-45	0-30		15-45
Efficiency (%)		79		79	79		79
Burner Ori®ce Diameter
Quantity (in. ...drill no.)		6 (.1285...30)		12 (.1285...30)	6 (.1285...30)		12 (.1285...30)
Pilot Ori®ce Diameter
Quantity (in. ...drill no.)		1 (.076...48)		2 (.076...48)	1 (.076...48)		2 (.076...48)
Firing Stages		2		2	2		2
Number of Gas Valves		1		2	1		2
CONDENSER FANS				Propeller Type
Quantity...Diameter (in.)			2...30			3...30
Nominal Cfm			18,600			26,000
Motor Hp...Rpm			1.0...1140			1.0...1140
EVAPORATOR FAN				Centrifugal 25 x 25 in.
Nominal Cfm			10,500			14,000
Maximum Allowable Cfm			15,000			20,000
Maximum Allowable Rpm			900			900
Shaft Diameter at Pulley (in.)			111¤16			111¤16
EVAPORATOR-FAN MOTOR AND DRIVE				(Any motor available on any unit)
Motor Hp		7.5		10.0	15.0		20.0
Motor Frame Size		213T		215T	254T		256T
Efficiency at Full Load (%)
Standard Efficiency		82.9		85.6	84.5		87.5
High Efficiency²		Ð		89.5	90.0		91.0
Fan Pulley Pitch Diameter (in.)		13.7		13.7	13.7		13.7
Motor Pulley Pitch Diameter (in.)		34.4		4.3	4.9		5.5
Resulting Fan Rpm		405		510	580		660
Belts	Quantity...Model No.
48 Series and 50 Series, Horizontal Discharge		2...BX60		2...5VX630	2...5VX630		2...5VX630
50 Series, Vertical Discharge		2...BX60		2...5VX630	2...5VX630		2...5VX630
Center Distance Range (in.)
48 Series and 50 Series, Horizontal Discharge		17.74...14.30		17.74...14.30	17.63...14.01		17.63...14.01
50 Series, Vertical Discharge		19.86...15.87		19.86...15.87	19.04...15.00		19.04...15.00
OPTIONAL POWER EXHAUST		Centrifugal, 15 x 15 in. (Any motor available on any unit)
Quantity...Motor Hp		2...3.0		2...5.0			2...7.5
Motor Frame Size		56HZ		184T			213T
Efficiency at Full Load (%)		81.0		84.0			82.9
Fan Pulley Pitch Diameter (in.)		6.9		6.9			6.9
Motor Pulley Pitch Diameter (in.)		3.35		4.12			5.0
Shaft Diameter at Pulley (in.)		13¤16		13¤16			13¤16
Resulting Fan Rpm		843		1040			1264
Maximum Allowable Rpm		1300		1300			1300
Belts	Quantity...No.	2...3VX670		2...3VX670			2...3VX710
FILTERS
Standard Efficiency Throwaway (Standard)		12...20 x 25 x 2			12...20 x 25 x 2
Quantity...Size (in.)		4...16 x 20 x 2			4...16 x 20 x 2
Medium Efficiency (30%) Pleated (Optional)		12...20 x 25 x 2			12...20 x 25 x 2
Quantity...Size (in.)		4...16 x 20 x 2			4...16 x 20 x 2
High Efficiency (90%) Bag Filters with Pre®lters (Optional)		6...20 x 24 x 22			6...20 x 24 x 22
Quantity...Size (in.)		6...20 x 20 x 22			6...20 x 20 x 22

TXV Ð Thermostatic Expansion Valve

*Data is for all 48 and 50 Series units of the size listed unless otherwise speci®ed. ²Not available on 575-v units.

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