Carrier 48TJ016-028 - Manual (Page 8)

Table 1 — Physical Data (cent)
UNIT 48TJ 016D/F 020D/F 024D/F 028D/F
FURNACE SECTION
Rollout Switch Cutout Temp (F)+ 190 190 190 190
Burner Orifice Diameter (in... .drill size)
Natural Gas 0.1285...30/0.136...29 0.1285...30/0.136...29 0.1285...30/0.136...29 0.1285...30/0.136...29
Thermostat Heat Anticipator Setting (amps)
208/230, 575 Stage 1 0.98 0.98 0.98 0.98
Stage 2 0.44 0.44 0.44 0,44
460 V stage 1 0.80 0.80 0.80 0,80
Stage 2 0.44 0.44 0.44 0,44
Gas Input Stage 1 172,000/225,000 206,000/270,000 206,000/270,000 206,000/270,000
Stage 2 230,000/300,000 275,000/360,000 275,000/360,000 275,000/360,000
Efficiency (Steady State) {%) 81 81 81 81
Temperature Rise Range
Manifold Pressure (in. wg) 15-45/20-50 15-45/20-50 15-45/20-50 15-45/20-50
Natural Gas 3.3 3.3 3.3 3.3
Gas Valve Quantity 1 1 1 1
Field Gas Connection Size (in .-FPT) 3/4 3/4 3/4 3/4
HIGH-PRESSURE SWITCH (psig)
Cutout
Reset (Auto)__________________ 426
320
LOW-PRESSURE SWITCH (psig)
Cutout
Reset (Auto)__________________ 27
44
FREEZE PROTECTION THERMOSTAT (F)
Opens
Closes 30 ±5
45 ±5
OUTDOOR-AIR INLET SCREENS
Quantity...Size (in.)
Cleanable
2.. .20x25x 1
1.. .20x 20 x1
RETURN-AIR FILTERS
Quantity...Size (in.)
Throwaway*’'
4.. .20x20x2
4.. .16x20x2
POWER EXHAUST V 2 Hp, 208/230-460 V Motor Direct Drive, Propeller-Fan (Factory-Wired for 460 v)
LEGEND
Bhp ™ Brake Horsepower
TXV — Thermostatic Expansion Valve
'Circuit 1 uses the lower portion of condenser coil and lower portion of evap­
orator coils; and Circuit 2 uses the upper portion of both coils.
fRollout switch is manual reset.
**The 48TJ028 units requires 2-in. industrial-grade filters capable of handling
face velocities of up to 625 ft/min (such as American Air Filter no, 5700 or
equivalent).
NOTE: The 48TJ016-028 units have a low-pressure switch (standard) located
on the suction side.