B-S
ERIES
I
NSTALLATION
, O
PERATION
AND
S
ERVICE
M
ANUAL
90 of 147
17.6 Additional Control Wirin
g
Depending on the style of the air handler (MUA, FR,
AM or VAV), there may be additional control
w
iring
that
w
ill be factory installed
w
hen the air handler is
ordered. Any additional control
w
iring that is added to
the air handler
w
ill be on the s
u
pplemental option
sheet. On the MUA style, there are no additional
controls
u
nless an optional feat
u
re is added. The FR
style air handler
u
ses a fixed damper and also does
not req
u
ire additional control
w
iring
u
nless an
optional feat
u
re is added.
The VAV style air handler controls a floating damper
and a
v
ariable freq
u
ency dri
v
e (VFD) and req
u
ires
additional control
w
iring. For additional VAV style
w
iring for models 2010 and 2010B,
. For additional
VAV style
w
iring for models 2020 and 2030,
.
The AM style air handler controls a floating damper
and req
u
ires additional control
w
iring. For additional
AM style
w
iring for models 2010 and 2010B,
. For additional AM style
w
iring for
models 2020 and 2030,
FIGURE 4
8
: Additional Control Wirin
g
for VAV Style (2010 and 2010B)
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
1
2
4
(L1)
(L2)
HIGH
LOW
B
60
120V
61
W
R
62
2
MODU-
LATING
DAMPER
MOTOR
NOTE: MOTOR STARTER,
L1 L2
T1 T2
20VA
MODULATING
REGULATING
VALVE
REDUCED FLOW SWITCH
49A
48
R4B
49
NC C
29
2
R4B
1
Damper Switch
DM2
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
2010 and 2010B
Содержание 2005
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