Rapid 2005, Installation, Operation & Service Manual

Page: 101 / 162

SECTION 17: E
LECTRICAL
91 of 147
FIGURE 49: Additional Control Wirin g for VAV Style (2020 - 2030)
PHOTOHELIC (1) LOCATED INSIDE CONTROL ENCLOSURE
CONTROLS DIFFERENTIAL PRESSURE
ACROSS BURNER
2
RELAY
R1
MOTOR
OL
VFD
AIR HANDLER
MOTOR
T1
T2
T3
S1 B C
L1
L2
L3
A
OL
OL
TO FUSABLE
DISCONNECT
3D
50 52 51
50
52
53
50
53 52 50
VARIABLE AIR VOLUME CONTROLLED BY THE DDC
P/N VAV - DDC
PRESET AT 0.75 (LOW) AND 0.90 (HIGH)
OVERLOAD AND M1
AUXILIARY CONTACT
IS REPLACED
WITH RM1 RELAY.
RM1
RM1
2
4
3D
3A
VFD PROGRAM PARAMTERS 25HP OR LESS
S4 SC S3
S5 SN
S3
UP TO 25HP
30HP AND UP
B C A
VFD TERMINALS
VFD PROGRAM PARAMTERS 30HP OR MORE
B1-02=1, C1-01=25, C1-02=25
D2-02=50, D4-01=1
E1-01=VOLTS, E2-01=AMP
H1-03=10, H1-05=11
C1-01=20 ACCEL TIME (SEC)
C1-02=20 DECEL TIME (SEC)
d2-02=50% MINIMUM HZ (50%=30HZ)
H1-03=10, H1-04=11, H1-05=0F
H1-07=0F (V1000 ONLY)
L2-01=1, L5-01=5
ACCEL
DECEL
ACCEL/DECEL
CONTACTS
WIRED BY
OTHERS
NOTE: MOTOR STARTER,
MODU-
LATING
DAMPER
MOTOR
HIGH
LOW
1
2
(L1)
(L2)
120V
L2
L3
L1
60
62
2
120V
DM2
1
MODULATING
REGULATING
VALVE
REDUCED FLOW SWITCH
49A
48 R4B
49
NC
C
29 2
R4B
1
Damper Switch
DM2
S1 S3
0
1.0
1.0
PHOTOHELIC
PROFILE PLATE
PRESSURE
PROFILE PLATE
BEFORE
AFTER
PHOTOHELIC PNEUMATIC DIAGRAM
+
-
BURNER
Part Number Description Models
VAV VAV Control Wiring 2020 and 2030