Electronic temperature controllers PRAMER-710 with weather compensation function

Fig.1 Pramer-710

Designation: Temperature controllers "Pramer-710" are intended for considerable energy saving and heating costs reduction. They regulate heating and hot water supply rate according to preset temperature chart taking into account outdoor temperature.

Application: Temperature controller "Pramer-710", integrated into systems of heating supply automated management* together with other devices (temperature sensors, control valve with electric actuator, circulating pump), help to maintain a desired temperature in a room by regulation of heating carrier flow rate, provide comfortable conditions and economical consumption of thermal energy and heating costs reduction in multi-apartment and industrial buildings, private residences and offices.

* for example, dispatching system "SADKO-Heat", produced by JSC "PromServis".

Proper organization of commercial accounting of consumed resources is a key factor of energy saving and costs reduction. When all primary actions are realized (sealing of windows, insulation of walls, roofs, etc.), the next step to real savings is introduction of control units into the heating system - it allows to optimize heat consumption, maintain comfortable temperatures according to schedule by automatic control of heat carrier temperature at the entrance to a building depending on outdoor temperature and indoor temperature in a room. This feature is most important for offices and administrative buildings.

It is possible to set a heat supply schedule for almost any heated object in any climatic zone, taking into consideration non-working days, holidays, working hours, etc.

JSC "PromService" developed temperature controller "Pramer-710" in 2002. Over the years of operation, consumers have made constructive suggestions for improving the device, for example regarding user interface. Taking into account proposals of end-users, rate of implementation of dispatching systems, we developed new improved and modernized version of the thermal controller "Pramer-710-1".

Adjustment of settings and display of data is possible in "Thermostat v1.0.0" service software at any PC, using the ModBus protocol via RS-232 or RS-485 interface.

Fig.2 "Pramer-710" mounted in plastic case

Advantages of "Pramer-710":

• can be integrated into automated control systems created by other manufacturers;
• user-friendly interface;
• simple setup and maintenance;
• economic efficiency due to costs reduction.

Functions:

• automatic maintenance of preset temperature in a room by means of of heat-carrier flow regulation in the heating system taking into account an outdoor temperature;
• automatic maintenance of preset hot water temperature by means of regulation of hot water flow in the supply system;
• protection against hardware and software failures: automated diagnostics of malfunctions and emergency alarm notification.

"Pramer-710" display at LCD and store in archive the following data:

• date and time;
• temperature inside the controlled space;
• outside air temperature;
• temperature of heat carrier in feeding and return pipes;
• codes of malfunctions and emergency situations.

Data storage intervals can be selected: 30 minutes or 1 hour.

In case of power supply switch off, internal clocks and archive data remain saved during minimum 48 hours.

Operating conditions

Ambient temperature: from -5 to +50 °C;

Relative humidity: up to 80% at temperature +35°C and less, without condensation;

Atmospheric pressure: 84...106,7 kPa.

Technical Characteristics