Rapid 2005 Installation, operation & service manual - page 116
B-S
ERIES
I
NSTALLATION
, O
PERATION
AND
S
ERVICE
M
ANUAL
106 of 147
FIGURE 6
8
: P7 30HP or More with Photohelic
17.10 Disconnect Fuse Sizin
g
The f
u
se classification m
u
st be determined by the ser
v
ice disconnect rating plate and all applicable codes.
F
u
se sizing is determined by the motor size, control c
u
rrent and s
u
pply
v
oltage. F
u
ses that are being
replaced m
u
st be replaced
w
ith the same type, size and class of f
u
se that
w
as s
u
pplied
w
ith the air handler.
For additional information or to confirm original f
u
se specifications, cons
u
lt the factory.
Table 16: Minimum and Maximum Fuse Size by Motor Size and Supply Volta
g
e
Electrical Characteristics
Motor Size HP(kW)
20
8
/3/60
230/3/60
460/3/60
575/3/60
230/1/60
2(1.5)
7.3-10.2
6.9-9.6
3.4-4.8
2.6-3.6
13.3-18.6
3(2.2)
10.1-14.2
9.3-13.0
4.6-6.5
3.7-5.2
17.3-24.2
5(3.7)
15.4-21.6
15.1-21.1
7.5-10.6
6.1-8.5
24.3-34.0
7.5(5.6)
23.1-32.4
21.3-29.8
10.6-14.9
8.3-11.6
32.3-45.2
10(7.5)
30.4-42.6
28.1-39.3
14.0-19.7
10.6-14.8
40.3-56.4
15(11.2)
42.4-59.4
39.3-55.0
19.6-27.5
16.8-23.5
-
20(14.9)
51.4-72.0
49.3-69.0
24.6-34.5
19.8-27.7
-
25(18.6)
66.4-93.0
61.3-85.8
30.6-42.9
24.5-34.3
-
30(22.4)
78.4-109.8
73.3-102.6
36.6-51.3
29.6-41.4
-
2
RELAY
R1
MOTOR
OL
VFD
EXHAUST
MOTOR(S)
T1
T2
T3
S1
S5 SN
L1
L2
L3
S3
OL
OL
TO CUSTOMER
SUPPLIED
DISCONNECT
AND FUSING
3C
50
52
51
50
(L1)
(L2)
HIGH
(ACCEL)
PHOTOHELIC
LOW
(DECEL)
52
53
3C 2
54
50
53
LOCATED ON VFD PANEL INSIDE CONTROL ENCLOSURE
PHOTOHELIC LOCATED INSIDE SEPARATE REMOTE ENCLOSURE
PRESET AT 0.1"(LOW) AND 0.3"(HIGH)
CONTROLS BOOTH PRESSURE
52
50
2
50
52
3C
54
INCREASE
OVERRIDE
TIMER
TD7
SET TO 60 SEC