Carrier 48NLT - Manual (Page 5)

Table 1 — Physical Data (cent)
UNIT SIZE 48
NLT
042
NMT
042
NET
042
NHT
042
NVT
042
NLT
048
NMT
048
NHT
048
NVT
048
NLT
060
NMT
060
NHT
060
NVT
060
NOMINAL CAPACITY (ton) 3Vz 4 5
OPERATING WEIGHT (lb) 496 500 500 550 556 574 580 586 586 604 610 616 616
COMPRESSORS
Quantity______
Reciprocating Hermetic, 3500 Rpm
1
REFRIGERANT* R-22
REFRIGERANT METERING
DEVICE
AocuRater® Piston
CONDENSER COIL
Rows
FIns/ln. 2
20
CONDENSER FAN
Nominal Airflow (Cfm)
Nominal Speed (Rpm)
Quantlty...Dlameter (In.)
Motor Hp (single-phase)
(three-phase)
2500 3000 3500
EVAPORATOR COIL
Rows
Fins/ln._________
EVAPORATOR FAN
Nominal Cfm
Nominal Speed (Rpm)
Diameter x Width (In.)
Motor Hp (single-phase)
(three-phase)
FURNACE SECTION
Burner Orifice No.
(Qty...drlll size) Natural Gas
Burner Orifice No.
(Qty...drill size) Propane Gas
Pilot Orifice Diameter
(In. ...drill size) Natural Gas
Pilot Orifice Diameter (In.)
Propane Gas
2000
I 3450
V2 3/4
’/2 3/4
3 44 4. 44 4 42 5 44 6 44 3 44 4 44 5 44 6 42 3 44 4 44 5 44 6 42
3 55 4 55 4 54 5 55 6. 55 3 .55 4 55 5 55 6 54 3 55 4 55 5 55 6 54
018 77
009
RETURN-AIR FILTERS (sq ln.)t
Disposable 720 816 960
Cleanable 480 544 640
•Operating charge is iisted on unit namepiate
tRequired fieid-suppiied fiiter areas are based on the iarger of the ARi-rated (Air Conditioning & Refrigeration institute) cooling airflow or the heating airflow at a velocity of 300 ft/min
for disposable type or 450 ft/min for high-capacity type. Air filter pressure drop must not exceed 0 08 in wg
Step 5 — Connect Condensate Drain
NOTE: When installing condensate drain connection be sure
to comply with local codes and restrictions.
The unit disposes of condensate water through a %-in.
NPT drain fitting. See Fig. 2 and 3 for location.
Install a 2-in. trap at the drain fitting to ensure proper
drainage. See Fig. 5. Make sure the outlet of the trap is at
least one-in. lower than the unit drain pan connection to
prevent the pan from overflowing. Prime the trap with
water.
If the installation requires draining the condensate water
away from the unit, connect a drain tube using a minimum
of %-in. OD copper tubing, y4-in. galvanized pipe or %-in.
plastic pipe.
Do not undersize the tube. Pitch the drain tube
downward at a slope of at least one inch in every 10 ft of
horizontal run. Be sure to check the drain tube for leaks.
UNIT 48
CORNER WT (LB)
A B C D
NLT018 99 126 126 99
NLT024 100 127 127 100
NHT024 101 129 129 101
NLT030 103 132 132 103
NMT030 105 133 133 105
NHT030 106 134 134 106
NLT036 107 136 136 107
NMT036 108 137 137 108
NET036 108 137 137 108
NHT036 117 147 148 118
NVT036 119 148 149 120
NLT042 109 139 139 109
NMT042 110 140 140 110
NET042 110 140 140 110
NHT042 117 147 147 117
NVT042 124 153 154 125
NLT048 128 158 159 129
NMT048 130 159 160 131
NHT048 131 161 162 132
NVT048 131 161 162 132
NLT060 136 165 166 137
NMT060 138 166 167 139
NHT060 139 168 169 140
NVT060 139 168 169 140
Fig. 4 - Suggested Rigging