S-Series Technical Manual
103
Cambridge Air Solutions
REMOTE CONTROL STATIONS
REMOTE CONTROL STATION - SECURITY
(RCS-S)
The RCS-S is a lockable NEMA 1
enclosure (9”W x 14”H x 5”D) equipped
with a three position key-lock selector
switch (Summer Ventilation - Off -
Heating); an Operating Electronic
Thermostat (OET); and indicating lights
for blower operation (green), burner operation (red),
and reset (amber).
The operator can control the heater from this panel
provided the heater mounted disconnect is in the
”ON” position and the service switches are in the
”REMOTE” position. The OET utilizes an encap-
sulated thermistor to sense space temperature. The
adjustable differential is set by the selection of the ON
and OFF temperatures. See instructions for the OET
(page 64).
TEMPERATURE SETBACK SYSTEM
(TSS)
The TSS is a lockable NEMA 1 enclosure
(9”W x 14”H x 5”D) equipped with a three
position selector switch (Summer
Ventilation - Off - Heating); a combination
seven day programmable timer and
thermostat; an override timer; and
indicating lights for blower operation (green), burner
operation (red), and reset (amber).
The operator can control the heater from this panel
provided the heater mounted disconnect is in the
”ON” position and the service switches are in the
”REMOTE” position. The TSS utilizes an encapsulated
thermistor to sense space temperature. The adjustable
differential is set by the selection of the ON and OFF
temperatures. This control can accommodate separately
programmed schedules for both the ventilation and
heating modes. See the operating and programming
instructions for the TSS Controller (page 66).
REMOTE CONTROL STATION
COMPONENTS
CLOGGED FILTER LIGHT (CF)
The clogged filter light is an alarm light mounted in
the remote control station to indicate a clogged filter
condition. Includes an adjustable pressure switch
mounted in the electrical control enclosure to monitor
the pressure drop across the filters.
EXHAUST FAN INTERLOCK (EFI)
An exhaust fan interlock is used to interlock the make-
up air heater as a slave to an exhaust fan. Terminals are
provided in the remote control station for wiring of dry
contacts (by others).
MANUAL MAKE-UP AIR SWITCH (MMS)
A manual make-up air toggle switch is used to
manually turn the heater on and off. It is either
mounted on the exterior of the door of the remote
control station or mounted inside for tamperproof
applications.
NON-ADJUSTABLE THERMOSTAT (TTP)
The non-adjustable thermostat is a fixed temperature,
solid state, epoxy sealed thermostat with a specified
temperature setpoint, either: 41
°
F, 50
°
F, 55
°
F, 60
°
F, or
65
°
F. It is wired between terminals Z1 and Z2.
TEMPERATURE AVERAGING SYSTEM
(TAS-2)
The TAS-2 option is used in
conjunction with the RCS-S or TSS to
average the space temperature between
two distant points within a facility. It
consists of four thermistors which are
wired in
a series/parallel combination in order to simulate a
single thermistor response.
INDIVIDUAL COMPONENT DESCRIPTIONS
