Carrier 38YKB - System Design

20
Heat pump heating performance continued
* The Btuh heating capacity values shown are net ‘‘integrated’’ values from which the defrost effect has been subtracted. The Btuh heating from
supplement heaters should be added to those values to obtain total system capacity.
† The kw values include the compressor, outdoor fan motor, and indoor blower motor. The kw from supplement heaters should be added to these
values to obtain total system kilowatts.
EDB = Entering dry bulb
System Design
1. Intended for outdoor installation with free air inlet and outlet. Outdoor fan external static pressure available is less than 0.01 in. wc.
2. Minimum outdoor operating air temperature for cooling mode without low-ambient operation accessory is 55˚F (12.8˚C).
3. Maximum outdoor operating air temperature for cooling mode is 125˚F (51.7˚C).
4. Minimum outdoor operating air temperature for heating mode is –30˚F (–34.4˚C).
5. Maximum outdoor operating air temperature for heating mode is 66˚F (18.9˚C).
6. For reliable operation, unit should be level in all horizontal planes.
7. Maximum elevation of indoor coil above or below base of outdoor unit is: indoor coil above = 50 ft, indoor coil below = 150 ft. (See items 8 and 9 following.)
8. For interconnecting refrigerant tube lengths greater than 50 ft, consult Long-Line Application Guideline available from equipment distributor.
9. Not more than 36 in. of refrigerant tube should be buried in the ground. If necessary to bury tubes under a sidewalk, provide a minimum 6-in. vertical rise to the
valve connections at the unit.
10. Use only copper wire for electric connection at unit. Aluminum and clad aluminum are not acceptable for the type of connector provided.
11. Mixmatches of indoor coil capacity more than 1 size larger than outdoor unit capacity may result in inadequate indoor comfort.
INDOOR
AIR
OUTDOOR COIL ENTERING AIR TEMPERATURES ° F
–3 7 17 27
37 47 57
EDB CFM
Capacity
MBtuh
Total
Power
Kw†
Capacity
MBtuh
Total
Power
Kw†
Capacity
MBtuh
Total
Power
Kw†
Capacity
MBtuh
Total
Power
Kw†
Capacity
MBtuh
Total
Power
Kw†
Capacity
MBtuh
Total
Power
Kw†
Capacity
MBtuh
Total
Power
Kw†Total Integ* Total Integ* Total Integ* Total Integ* Total Integ* Total Integ* Total Integ*
38YKB048-30, 31 Outdoor Section With FB4AN(A,F,M)048 Indoor Section
65
1500 22.5 20.7 3.59 26.8 24.7 3.69 31.6 28.8 3.80 37.0 32.9 3.93 43.2 39.3 4.09 50.2 50.2 4.29 58.3 58.3 4.58
1650 22.8 21.0 3.63 27.1 24.9 3.72 31.9 29.1 3.82 37.3 33.2 3.94 43.6 39.6 4.09 50.6 50.6 4.29 58.8 58.8 4.57
1800 23.0 21.2 3.68 27.4 25.1 3.76 32.2 29.3 3.85 37.6 33.4 3.96 43.9 39.9 4.11 51.0 51.0 4.30 59.2 59.2 4.58
70
1500 22.2 20.5 3.72 26.5 24.4 3.84 31.3 28.5 3.96 36.6 32.5 4.09 42.7 38.8 4.26 49.6 49.6 4.47 57.6 57.6 4.76
1650 22.5 20.7 3.77 26.8 24.6 3.87 32.4 29.5 3.99 36.9 32.8 4.10 43.0 39.2 4.26 50.0 50.0 4.47 58.1 58.1 4.75
1800 22.7 20.9 3.81 27.1 24.9 3.91 31.9 29.1 4.01 37.2 33.1 4.13 43.4 39.5 4.28 50.4 50.4 4.47 58.5 58.5 4.75
75
1500 21.8 20.0 3.85 26.2 24.1 3.99 31.0 28.2 4.12 36.2 32.1 4.27 42.2 38.4 4.44 49.0 49.0 4.66 56.8 56.8 4.95
1650 22.1 20.3 3.89 26.5 24.3 4.02 31.2 28.5 4.14 37.2 33.1 4.28 42.5 38.7 4.44 49.4 49.4 4.65 57.3 57.3 4.94
1800 22.3 20.5 3.94 26.7 24.6 4.06 31.5 28.7 4.17 36.8 32.7 4.30 42.9 39.0 4.45 49.8 49.8 4.65 57.8 57.8 4.94
Multipliers for Determining the Performance With Other Indoor Sections
Indoor
Section Size
Heaating
Indoor
Section Size
Heating
Capacity Power Capacity Power
FB4AN(A,F,M) 048 1.00 1.00 CC5A/CD5AC 048 0.98 1.05
060 1.01 1.00 CC5A/CD5AW 048 0.99 1.02
FB5AN(A,F) 048 1.00 1.00 060 0.99 0.98
060 1.01 1.00 CD5AA 048 0.99 1.02
F(A,B)4AN(F,B) 048 1.00 1.00 CC5A/CD5AA 060 0.98 1.02
060 1.01 1.00 CD3(A,B)A 048 0.99 1.02
FK4ANF 006 0.99 0.90 060 0.98 1.02
FC4BNB 054 1.00 0.94 CF5AA 048 0.98 1.01
FC4BN(F,B) 048 1.00 1.00 CE3AA 048 0.99 1.01
060 1.01 1.00 060 0.99 0.98
FG3AAA 048 0.99 1.01 — — —
060 0.99 1.00
38YKB060-30, 31 Outdoor Section With FB4AN(A,F,M)060 Indoor Section
65
1800 28.6 26.3 4.27 33.9 31.1 4.43 39.5 36.0 4.59 45.8 40.7 4.77 53.0 48.2 5.00 61.1 61.1 5.26 70.5 70.5 5.61
2000 29.0 26.7 4.33 34.2 31.5 4.48 39.9 36.4 4.63 46.3 41.1 4.80 53.6 48.7 5.01 61.7 61.7 5.26 71.2 71.2 5.60
2200 29.4 27.0 4.41 34.6 31.8 4.54 40.3 36.8 4.68 46.7 41.5 4.84 54.0 49.2 5.04 62.3 62.3 5.28 71.8 71.8 5.61
70
1800 28.0 25.8 4.42 33.5 30.8 4.61 39.1 35.6 4.78 45.3 40.3 4.98 52.4 47.7 5.21 60.4 60.4 5.49 69.6 69.6 5.85
2000 28.5 26.2 4.48 33.9 31.1 4.66 39.5 36.0 4.82 45.8 40.7 5.00 53.0 48.2 5.22 61.0 61.0 5.48 70.4 70.4 5.83
2200 28.9 26.6 4.56 34.3 31.5 4.72 39.9 36.4 4.87 46.3 41.1 5.04 53.5 48.6 5.25 61.6 61.6 5.50 71.0 71.0 5.83
75
1800 27.4 25.2 4.57 33.1 30.4 4.79 38.7 35.2 4.98 44.9 39.8 5.19 51.8 47.2 5.43 59.7 59.7 5.72 68.7 68.7 6.09
2000 27.8 25.6 4.64 33.5 30.8 4.84 39.1 35.6 5.02 45.3 40.3 5.21 52.4 47.7 5.44 60.3 60.3 5.71 69.5 69.5 6.07
2200 28.3 26.0 4.71 33.9 31.1 4.90 39.5 36.0 5.07 45.8 40.7 5.25 52.9 48.1 5.47 60.9 60.9 5.73 70.1 70.1 6.07
Multipliers for Determining the Performance With Other Indoor Sections
Indoor
Section Size
Heaating
Indoor
Section Size
Heating
Capacity Power Capacity Power
FB4AN(A,F,M) 060 1.00 1.00 FG3AAA 060 0.98 0.99
FB5AN(A,F) 060 1.00 1.00 CC5A/CD5AA 060 0.97 1.03
FB4AN(F,M,B) 070 1.00 0.96 CC5A/CD5AW 060 0.98 0.98
F(A,B)4AN(F,B) 060 1.00 1.00 CD3(A,B)A 060 0.97 1.03
FK4ANF 006 1.00 0.96 CE3AA 060 0.98 0.98
FC4BN(F,B) 060 1.00 1.00 — — —