Motor Limitations; User Defined Set Points - Carrier 50EJ Installation, Start-Up And Service Instructions Manual

STANDARD EFFICIENCY MOTORS
Nominal Maximum
Hp Bhp
5.9
5
5.9
8.7
7.5
9.5
10.2
10
11.8
15.3
15
18.0
22.4
20
23.4
28.9
25
29.4
35.6
30
34.7
HIGH EFFICIENCY MOTORS
Nominal Maximum
Hp Bhp
5.9
5 5.9
5.9
8.7
7.5 9.5
9.5
10.2
10 11.8
11.8
15.3
15 18.0
18.0
22.4
20 23.4
23.4
28.9
25 29.4
29.4
35.6
30 34.7
34.7
LEGEND
BHP — Brake Horsepower
SET POINT
OHSP
OCSP
UHSP
UCSP
SASP
OATL
NTLO
RTIO
LIMT
MDP
IAQS
UHDB
UCDB
LTMP
HTMP
PES1
PES2
LEGEND
CV — Constant Volume
IAQ — Indoor Air Quality
OAT — Outdoor Air Temperature
Table 16 — Motor Limitations
208 230
17.94 16.99
— —
25.52 24.36
— —
26.93 25.50
— —
42.84 40.80
— —
59.36 56.00
— —
76.30 72.83
— —
92.56 87.81
— —
208 230
16.76 13.92
—
—
26.10 22.27
—
—
28.56 24.89
—
—
45.08 39.17
—
—
63.84 55.55
—
—
80.69 70.05
—
—
102.65 89.00
—
—
Table 17 — User Defined Set Points
FORMAT
xx.xF Occupied Heat Set Point
xx.xF Occupied Cool Set Point
xx.xF Unoccupied Heat Set Point
xx.xF Unoccupied Cool Set Point
xx.xF Supply Air Set Point
xx.xF Hi OAT Lockout Temperature
xx.xF Unoccupied OAT Lockout Temperature
xx.x Reset Ratio
xx.x^F Reset Limit
xxx% Minimum Damper Position
xxxx IAQ Set Point
xx.x^F Unoccupied Heating Deadband
xx.x^F Unoccupied Cooling Deadband
xx.xF Low Temp. Min. Position
xx.xF High Temp. Min. Position
xx.xF CV Power Exhaust Stage 1 Point
xx.xF CV Power Exhaust Stage 2 Point
Maximum Amps
460
—
8.50
—
13.30
—
14.75
—
24.00 18.00
—
29.25 22.82
—
37.04 28.69
—
42.80
Maximum Amps
460
—
— 6.96
— —
—
— 12.16
— —
—
— 14.40
— —
—
— 23.04
— —
—
— 29.02
— —
—
— 35.63
— —
—
— 43.38
— —
NOTE: Extensive motor and electrical testing on the Carrier units has ensured
that the full horsepower range of the motor can be utilized with confidence.
Using your fan motors up to the horsepower ratings shown on the Motor Limi-
tations table will not result in nuisance tripping or premature motor failure. Unit
warranty will not be affected.
DESCRIPTION
39
Maximum
Watts
575
— 5,348
5.78 5,240
— 7,717
9.63 8,549
— 8,879
11.33 10,284
— 13,686
15,891
— 19,032
19,950
— 24,499
25,181
— 29,378
n/a 29,316
Maximum
Watts
575
— 5,030
— 5,030
5.66 4,918
— 7,334
— 8,008
9.50 7,728
— 8,502
— 9,836
11.68 9,600
— 12,543
— 14,756
18.12 14,439
— 18,363
— 19,183
23.17 18,650
— 23,511
— 23,918
28.81 23,432
— 28,742
— 28,015
33.89 27,656
LIMITS
55 to 80 F
55 to 80 F
40 to 80 F
75 to 95 F
45 to 70 F
55 to 75 F
40 to 70 F
0 to 10
0 to 20 F
0 to 100%
1 to 5000
0 to 10
0 to 10
0 to 100
0 to 100
0 to 100
0 to 100
Motor
Efficiency
82.3
84.0
84.1
82.9
85.7
85.6
83.4
84.5
87.8
87.5
88.0
87.1
90.4
88.3
Motor
Efficiency
87.5
87.5
89.5
88.5
88.5
91.7
89.5
89.5
91.0
91.0
91.0
93.0
91.0
91.0
93.6
91.7
91.7
93.6
92.4
92.4
93.6
DEFAULT
68
78
55
90
55
65
50
3
10
20
650
1
1
10
35
25
75