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FEATURES
• Easy to install and commission
• Shipped with typical default
values, decreasing commissioning
time
• Quick set mode allows basic
settings to be easily checked
and set
• Simple override switch
• Operates single or two
stage systems
• Standard 0 to 10Vdc output
• Night Set Back (NSB) and
set-up inputs
• Compatible with previously
installed Satchwell sensors
• Remote setting input
• Cost effective upgrade of obsolete
Climatronic controllers
Stand-alone
Controllers
PID 0-10Vdc Controller
Satchwell Product Catalogue – Stand-alone Controllers – PID 0-10Vdc Controller
CZT PID 0-10Vdc Controller
The CZT Controller is designed for use in systems such as room or return water
control. It can be used for single or two stage control and is suitable for use with
0 to 10Vdc actuators.
INSTALLATION DETAILS
Power supply:
230Vac (+10%, -6%)
50/60Hz
Power failure reserve:
Settings stored in
memory, 1 year battery for clock
Protection class:
IP 30
Switched Inputs
Night Set Back (NSB): Voltage free,
make/break contacts. Normally closed.
Set Up: remote voltage free, make/break
contacts. Normally closed.
Outputs
Control outputs: 2 x 0 to 10Vdc outputs
for heating and cooling.
Output Supply: 2 x 24Vac terminals used
to power the actuator(s) up to a total of
10VA maximum.
Control
Output
CZT 5305
Single or two stage
0 to 10Vdc for heating and cooling
Data Sheet 2.105
SensorS
Current Sensor
Type
Replaces
STR602
Space
DRT 3651
STR600
Space
DRT 3453
STR612
Space
DRT 3451
STD660
Duct
DDT 0001
STP660
Water (Immersion)
DWT 0001
STR602
Remote setting
RPW 4425
SVT 7-day Optimiser
This energy-saving controller can replace a conventional time switch on a heating
system and provides a variable start time dependent on the fall of room temperature
during the off period.
It is used to switch systems on and off and will substantially reduce energy
consumption compared with fixed time starting. In all but the very coldest weather
the start time is delayed until the latest time consistent with the amount of heat
necessary to reach the required temperature at occupancy time.
FEATURES
• Easy installation – only one
sensor required (packed with the
controller)
• Programme override switch
• Choice of day control by separate
compensator or built-in on/off day
control
• Minimum night ‘inside’
temperature protection
• Analogue and Digital clock
versions available
Version
Output relays
SVT 4201
Analogue clock
Plant, 250V, 2A (1A inductive)
Control, 250V, 2A (1A inductive)
SVT 4251
Digital clock
Data Sheet 2.001
INSTALLATION DETAILS
Power supply:
230V 50/60Hz
Power failure reserve:
For clock, 100 hours
Protection class:
IP 41
Associated Sensor:
STR614
(included with controller)
7-DAY OPTIMISER