Form #: SIDOM.4 Page | 12 Revised: 03/19
Pneumatic Controls
Volume controllers for LMHS units are shown in Figure 7 below. Each control sequence, function
arrangement and controller is shown in Table 2.
Figure 7 – Pneumatic Volume Controllers
DA-NO, HEATING/COOLING MAXIMUM
RA-NO, HEATING/COOLING MAXIMUM
LEGEND: DA - DIRECT ACTING, NC - NORMALLY CLOSED,
NO - NORMALLY OPEN, RA - REVERSE ACTING
Table 2 – Pneumatic Control Sequence Controllers
KMC - CSC 3011
(Multi-Function Controller)
Pneumatic Volume Controllers
KMC - CSC 2004
(Normally Closed)
*LO and HI are reversed*
KMC - CSC 2003
(Normally Open)
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