Select And Install Ductwork - Carrier Infinity 48XT A Series Installation Instructions Manual

UNIT SIZE
NOMINAL COOLING CAPACITY (ton)
NOMINAL HEATING CAPACITY (Btu)
SHIPPING WEIGHT (lb)
(kg)
COMPRESSORS
Quantity
REFRIGERANT: PURON (R- - 410A)
Quantity (lb)
(kg)
EXPANSION DEVICE- - HEATING
Orifice OD (in.) - - Left
Orifice OD (in.) - - Right
EXPANSION DEVICE- - COOLING
Size
OUTDOOR FAN
Nominal Cfm
Diameter (in.)
(mm)
Motor Hp (Rpm)
OUTDOOR COIL
Rows...Fins/in.
Face Area (sq ft)
INDOOR COIL
Rows...Fins/in.
Face Area (sq ft)
INDOOR FAN
Nominal Airflow (Cfm)
Comfort
Efficiency
Max
Furnace (gas ht.) airflow --- Low Stage
Furnace (gas ht.) airflow --- High Stage
Size in.
(mm)
Motor HP (RPM)
FURNACE SECTION*
Burner Orifice No. (Qty...Drill Size)
Natural Gas
HIGH- - PRESSURE SWITCH (psig)
Cut- -out
Reset (Auto)
HIGH- - PRESSURE SWITCH 2 (psig)
(Compressor Solenoid)
Cut- -out
Reset (Auto)
LOSS- - OF- - CHARGE /
LOW- - PRESSURE SWITCH
(Liquid Line) (psig)
Cut- -out
Reset (auto)
RETURN- - AIR FILTERS Throwaway (in.)†
*Based on altitude of 0 to 2000 ft (0 ---610 m).
{Recommended filter sizes for field---installed air filter grilles mounted on the wall or ceiling of the conditioned structure. Required filter sizes shown are based on
the larger of the ARI (Air Conditioning and Refrigeration Institute) rated cooling airflow or the heating airflow velocity of 300 ft/minute for throwaway type or 450
ft/minute for high ---capacity type. Air filter pressure drop for non ---standard filters must not exceed 0.08 in. wc.

Select and Install Ductwork

The design and installation of the duct system must be in
accordance with the standards of the NFPA for installation of
non- -residence type air conditioning and ventilating systems,
NFPA 90A or residence type, NFPA 90B and/or local codes and
ordinances.
Select and size ductwork, supply- -air registers, and return air grilles
according to ASHRAE (American
Refrigeration, and Air Conditioning Engineers) recommendations.
All manuals and user guides at all-guides.com
Table 1—Physical Data Con't - - Unit 48XT- -A
A48090 A48115
4
90,000 115,000
575
261
15.5 15.5
7.0
0.038 0.038
0.046 0.046
4 Ton 4 Ton
3300 3300
22
559
1/4 (1100) 1/4 (1100)
2...21 2...21
19.4 19.4
3...17 3...17
5.7
Variable based on Comfort Roll back (see User Interface instructions for more information).
1400 1400
1600 1600
815 1215
1385 1885
11x10 11x10
279x254 279x254
3/4
3...38 3...33
(mm)
Society of Heating,
A48130
4 4
130,000
575 575
261 261
Two- -Stage Scroll
1
15.5
7.0 7.0
AccuRater
0.038
0.046
TXV
4 Ton
3300
22 22
559 559
1/4 (1100) 1/3 (1110)
2...21
19.4
3...17
5.7 5.7
1400
1600
1255
1875
11x10
279x254
3/4 3/4
3...31
670 10
±
470 25
±
565 ± 15
455 ± 15
23 5
±
55 5
±
24x36x1
610x914x25
The unit has duct flanges on the supply- - and return- -air openings
on the side of the unit.
When designing and installing ductwork, consider the following:
1. All units should have field- -supplied filters or accessory
filter rack installed in the return- -air side of the unit.
Recommended sizes for filters are shown in Table 1.
2. Avoid abrupt duct size increases and reductions. Abrupt
change in duct size adversely affects air performance.
8
A60090 A60115
5 5
90,000 115,000
618 618
280 280
16.0 16.0
7.3 7.3
0.046 0.046
0.046 0.046
5 Ton 5 Ton
3300 3300
22 22
559 559
1/3 (1110)
2...21 2...21
23.3 23.3
4...17 4...17
5.7 5.7
1750 1750
2000 2000
845 1215
1300 1910
11x10 11x10
279x254 279x254
1 1
3...38 3...33
A60130
5
130,000
618
280
16.0
7.3
0.046
0.046
5 Ton
3300
22
559
1/3 (1110)
2...21
23.3
4...17
5.7
1750
2000
1255
1920
11x10
279x254
1
3...31