User Manual

ManualsBrandsSiemens ManualsTemperature ControllerSiemens REV23

CE1N2264en

23.04.2002

Siemens Building Technologies

HVAC Products

264

Self-learning Room

Temperature Controller

REV23

5 operating modes, heating / cooling functions and menu selection via roller selector

• Mains-independent room temperature controller

• Straightforward, self-explanatory menu selection via roller selector

• Self-learning 2-position controller providing PID mode (patented)

• Choice of operating modes:

automatic with maximum 3 heating or cooling periods, continuously comfort

mode, continuously economy mode, frost protection with one 24-hour operat-

ing mode and one heating or cooling period

• In automatic mode, one temperature setpoint can be adjusted for each heating

or cooling period

• Control of cooling equipment

Use

For the control of the room temperature in:

• Apartments, single-family or holiday houses

• Offices, individual rooms, consulting rooms or commercially used spaces

For control of the following pieces of equipment:

• Solenoid valves of instantaneous water heaters

• Solenoid valves of atmospheric gas burners

• Forced draft gas or oil burners

• Circulating pumps in heating systems, zone valves

• Electric direct heating systems or fans of electric storage heaters

• Thermic actuators

• Cooling and refrigeration equipment

Summary of content (12 pages)

PAGE 1
2 264 Self-learning Room Temperature Controller REV23 5 operating modes, heating / cooling functions and menu selection via roller selector • • • • Mains-independent room temperature controller Straightforward, self-explanatory menu selection via roller selector Self-learning 2-position controller providing PID mode (patented) Choice of operating modes: automatic with maximum 3 heating or cooling periods, continuously comfort mode, continuously economy mode, frost protection with one 24-hour operating
PAGE 2
Functions • PID mode with self-learning or selectable switching cycle • 2-position control • Automatic mode with 7-day switching program for 24-hour, working day, weekend or 7-day operation with up to 3 heating or cooling periods per day • One temperature setpoint for each heating or cooling period • One 24-hour operating mode with one heating or cooling period • Remote operation • Override button • Sensor calibration and reset function • Frost protection function or overtemperature protection • Limitation
PAGE 3
Display Time of day °C Room temperature Change batteries (display appears about 3 months before batteries are exhausted) Remote operation active Holiday mode active Selection of operating mode (only one operating mode is activ) Automatic mode Comfort mode Economy mode Frost protection or overtemperature protection 24-hour mode with one heating or cooling period (heating or cooling period is automatically generated from the current 24-hour program) Temporary change of the current setpoint temperature (cha
PAGE 4
Setpoint economy mode remote operation Time switch Main menu Submenu 10 °C 30 °C Settings Selection of day of week, working day, weekend or week Selection of the number of heating or cooling periods, max. 3 Selection of heating / cooling period start and end time T °C Selection of heating / cooling period setpoint temperature Absence Main menu Submenu Entry of holidays or periods of absence. (number of days with economy mode setting / max.
PAGE 5
24-hour operating mode Example The controller generates the 24-hour operating mode from the current 24-hour program. It automatically selects the switch-on time of the first heating / cooling period and the switch-off time of the last heating / cooling period to generate and display a complete heating / cooling period. The comfort temperature used by the controller is the .
PAGE 6
When the holiday period is over and the counter reads 00, the controller will resume the operating mode selected last. Remote operation Using a suitable remote operating device, the controller can be switched to an inde. Changeover is accomplished by the pendently adjustable economy temperature making of a potentialfree contact connected to terminals T1 and T2. In that case, symbol will appear on the display. When the contact opens, the operating mode selected last will be resumed.
PAGE 7
Heating engineer level Accessing To access the heating engineer level, keep the warmer and colder buttons depressed and simultaneously roll the roller selector away from the display and then toward the display. Sensor calibration If the displayed temperature does not correspond to the effective room temperature, the temperature sensor can be recalibrated (recalibration to be made on the heating engineer level). The displayed temperature can be matched to the effective room temperature in increments of 0.
PAGE 8
Periodic pump run / PID 12 mode Switching cycle of 12 minutes for normal or slow controlled systems (massive building structures, large spaces, cast-iron radiators, oil burners). PID 6 mode Switching cycle of 6 minutes for fast controlled systems (light building structures, small spaces, plate radiators or convectors, gas burners). 2-Pt mode Pure 2-position control with a switching differential of 0.5 °C (±0.
PAGE 9
Notes Engineering • The room temperature controller should be fitted in the main living room • The place of installation should be chosen such that the sensor can capture the room temperature as accurately as possible, without being affected by direct solar radiation or other heating or cooling sources • Mounting height is approximately 1.
PAGE 10
Technical data General unit data Norms and standards Operating voltage Batteries (alkaline AA) Battery life Backup for batter change Switching capacity of relay Voltage Current Safety class Sensing element Measuring range Time constant Setpoint setting ranges Normal temperature Economy temperature Frost protection temperature Resolution of settings and display Setpoints Switching times Measurement of actual value Display of actual value Display of time CE conformity Electromagnetic compatibility Low volta
PAGE 11
Connection diagram 2252A02 L T1 L2 T2 L1 N1 AC 24...250 V DC 3 V L S1 N M1 Y1 N L L1 L2 M1 N Live AC 24…250 V N.O. contact, AC 24…250 V / 6 (2.5) A N.C. contact, AC 24…250 V / 6 (2.
PAGE 12
E1 Y1 M1 Cooling equipment F1 Limit thermostat F2 Safety limit thermostat M1 Circulating pump N1 Room temperature controller REV23 Y1 3-port valve with manual adjustment Y2 Solenoid valve Y3 Motorized 3-port valve Y4 Motorized 2-port valve 2261S04 N1 T Circulating pump with precontrol via manual mixing valve 30 Dimensions 2264M01 140 104.5 127 12 78.8 56 Ø6 0 11.75 83.