Carrier 35E - Pneumatic Control Balancing and Troubleshooting; Balancing Procedures

9
Table 4 — Pneumatic Volume Controller Identification
LEGEND
Balancing Procedure (Control Sequences
1102 and 1103)
DIRECT ACTING THERMOSTAT, NORMALLY OPEN
DAMPER (Control Sequence 1102) — Refer to Fig. 8.
1. Minimum volume setting:
a. Disconnect the thermostat line from the volume
controller.
b. Adjust the minimum volume control knob
(marked “LO” and located in the center of the
controller) to achieve the required minimum flow.
To determine the required pressure differential,
refer to Tables 2 and 5 and the Linear Averaging
Probe Chart provided on the side of the VAV unit
and in Fig. 6.
c. Reconnect the thermostat line.
2. Maximum volume setting:
a. Disconnect the thermostat line from the volume
controller.
b. Apply 15 + psi to the thermostat port on the vol-
ume controller (marked “T”) by tapping into the
main air pressure line.
c. Adjust the maximum volume control knob
(marked “HI” and located at the side of the con-
troller) until the desired pressure differential is
registered on the manometer. To determine the
required pressure differential, refer to Table 5 and
the Linear Probe CFM vs Pressure Signal Graph
provided on the side of the VAV unit and in Fig. 6.
d. Reconnect the thermostat line.
REVERSE ACTING THERMOSTAT, NORMALLY CLOSED
DAMPER (Control Sequence 1103) — Refer to Fig. 9.
1. Maximum volume setting:
a. Disconnect the thermostat line from the velocity
controller.
b. Adjust the maximum volume control knob
(marked “HI” and located in the center of the con-
troller) to achieve the required minimum flow. To
determine the required pressure differential, refer
to Tables 2 and 5 and the Linear Averaging Probe
Chart provided on the side of the VAV unit and in
Fig. 6.
c. Reconnect the thermostat line.
2. Minimum volume setting:
a. Disconnect the thermostat line from the velocity
controller.
b. Apply 15 + psi to the thermostat port on the vol-
ume controller (marked “T”) by tapping into the
main air pressure line.
CONTROL
SEQUENCE
FUNCTION
ARRANGEMENT
IDENTIFICATION
FIG. NO.
KREUTER
PART NO.
1102 DA-NO 8 CSC-2003
1103 RA-NC 9 CSC-2004
1104 DA-NO 10 CSC-3011
1105 DA-NC 10 CSC-3011
1106 RA-NO 10 CSC-3011
1107 RA-NC 10 CSC-3011
1108 DUAL MAX 10 CSC-3011
1109 HTG/CLG MAX 10 (2) CSC-3011
1110 DUAL MIN 10 CSC-3011
DA — Direct Acting NO — Normally Open
NC — Normally Closed RA — Reverse Acting
HI
LO
CSC-2003
0-1”
P
D.A.
DM
PR. N.O.
I
N
C
R
E
A
S
E
I
N
C
R
E
A
S
E
HI
LO
CSC-2004
0-1”
P
R.A.
DM
PR. N.C.
I
N
C
R
E
A
S
E
I
N
C
R
E
A
S
E
T
H
L
B
M
NO
NC
G
RESET START
LO STAT ∆P
RESET SPAN
HI STAT ∆P
DAMPER
I
N
C
R
I
N
C
R
Fig. 8 — Pneumatic Volume Controller
(Normally Open) for 35EP Unit (Beige Color)
Fig. 9 — Pneumatic Volume Controller
(Normally Closed) for 35EP Unit (Grey Color)
Fig. 10 — CSC 3000 Series
Reset Volume Controller