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Related Manuals for TECH ST-37
Summary of Contents for TECH ST-37
- Page 2 ST-37 Instruction Manual TECH Declaration of Conformity No. 4/2004 Hereby we declare under sole responsibility that the ST-37 230V, 50Hz thermoregulator manufactured by TECH, ul. St. Batorego 14, 34-120 Andrychów, is compliant with the Regulation by the Ministry of Economy. (Journal of Laws Dz.
- Page 3 TECH ATTENTION! LECTRIC CURRENT Make sure the regulator is unplugged before working on the power supply (cable connections, device installation, etc.)! All mounting works must only be carried out by qualified electricians. Before activating the controller, measure the electric motor resetting efficiency, check the boiler and inspect wire insulation.
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Page 4: Description
Please send all comments on the software to the boiler manufacturer. Your controller should be set according to your individual needs, depending on the type of fuel and boiler used. TECH shall not be held responsible for incorrect settings. - 4 -... -
Page 5: Regulator Functionality
TECH II. Regulator Functionality This chapter describes regulator functionality, how to change settings and navigate in the menu. II.a) Main Page C.H. During normal operation, the LCD display shows the main page with the following data: Boiler temperature Setpoint temperature ... -
Page 6: Ii.c) Feed Time
ST-37 – Instruction Manual Feeder BLOW Pressing OPTIONS will enable the fuel feeder. The feeder will operate until OPTIONS is pressed again. FEEDER BLOW Press OPTIONS to enable / disable the blow. BLOW C.H. Pump Press OPTIONS to enable / disable the central heating pump. -
Page 7: Ii.d) Feed Interval
TECH With this function, you can set the operation time for the fuel feeder. Set the operation time according to the type of fuel and boiler used. II.d) Feed Interval Feed Time C.H. Feed Interval 00 min 40 sec Feed Interval With this function, you can set the stand-by time for the feeder, depending on the type of fuel used in the boiler. -
Page 8: Ii.g) Feeder
ST-37 – Instruction Manual With this function, you can set the blow interval in the sustain mode. The two menus are used for regulating the furnace while in the sustain mode. This is to prevent damping of the furnace when the boiler temperature is over the setpoint value. -
Page 9: Ii.i) Pump Switch-On Temperature
TECH II.i) Pump Switch-on Temperature Blow C.H. Pump Activ Temp Pump Activ Temp With this function, you can set the temperature that will activate the central heating pump and the hot consumption water pump (the temperature is measured on the boiler). Below the setpoint temperature, the pumps are disabled;... -
Page 10: Ii.k) Hot Consumption Water Hysteresis
ST-37 – Instruction Manual II.k) Hot Consumption Water Hysteresis C.H. Hysteresis C.H. H.C.W. Hysteresis H.C.W. Hysteresis With this function, you can set the hysteresis of the setpoint temperature on the water heater. This is a difference between the setpoint temperature (required by the water heater) and the actual temperature on the boiler (e.g.:... -
Page 11: Ii.m) Working Modes
TECH II.m) Working Modes Blow Force C.H. Working Modes With this function, you can select one out of four working modes. The asterisk (*) next to a given mode means that the boiler is working in this mode. You can select only one mode out of five. -
Page 12: Ii.m.3) Parallel Pumps
ST-37 – Instruction Manual activation threshold (see page 9, point II i). The temperature is adjusted with PLUS and MINUS. After several seconds, the display will return to its previous state. After reaching the water heater setpoint temperature, the hot consumption water pump is shut off, causing the central heating pump to be activated. -
Page 13: Ii.m.4) Summer Mode
Room Reg Off * The ST-37 regulator can be connected to a room regulator. In such case, it has a higher priority which does not apply to heating from the water heater. The feeder and the fan run until the temperature set with the room regulator is reached, and the central heating pump runs throughout this period (the central heating pump can be shut off using service settings;... -
Page 14: Ii.o) Week-Based Regulation
ST-37 – Instruction Manual room setpoint temperature has been reached, the central heating pump is shut off and will be activated again when the room temperature drops below the setpoint value). However, the boiler is limited in its operation by the temperature set with the boiler controller. - Page 15 TECH Monday - Sunday Start is the time when the temperature starts to rise or drop. Stop is the time when the temperature ceases to rise or drop. Temperature difference is the rise or the drop in degrees, e.g. Monday...
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Page 16: Ii.p) Temperature Alarm
ST-37 – Instruction Manual in the second mode, the change is defined for working days (Monday - Friday) and weekend days (Saturday - Sunday) When the function is enabled, the main page displays "t1" or "t2" (the digits indicate the active mode) to indicate that the week-based regulation is active. -
Page 17: Ii.r) Factory Settings
TECH the boiler temperature is over the setpoint temperature. With this function, you can set the feeder stand-by time (working time is set as constant by default). Set the burnout pause time according to the type of fuel and boiler used. -
Page 18: Iii.b) Thermal Protection
ST-37 – Instruction Manual III.a) Temperature Alarm The protection is enabled only in the operation mode (i.e. when the furnace temperature is lower than the setpoint temperature). When the furnace temperature fails to rise in the user-defined period, an alarm is activated: the feeder and the fan are shut off (the water pump is activated regardless of the furnace temperature) and the alarm is sounded. -
Page 19: Iii.d) Anti-Boil Protection
TECH the feeder and the fan are shut off. The pump is activated regardless of the actual temperature. If you press OPTIONS, the regulator will deactivate the alarm and the controller will return to normal operation. III.d) Anti-Boil Protection This function is used for protecting the boiler against high temperatures [only with the water heater priority function], e.g. -
Page 20: Iii.f) Fuel Container Protection
Higher current ratings may cause damage to the controller. IV. Maintenance Before and during the heating season, the ST-37 controller should be checked for condition of its cables. You should also check if the controller is properly mounted and clean it if dusty or dirty. It is advisable to measure grounding parameters for the motors (central heating pump, hot consumption water pump, fan and feeder). - Page 21 ATTENTION: improper cable connection may damage the regulator! ATTENTION: the ST-37 controller must be built into the boiler so that the cable connection strips are not accessible. The regulator may not be operated in a closed-circuit central heating system. It is necessary to provide for safety valves, pressure valves and a surge tank in order to prevent water from boiling in the central heating system.
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Page 22: A) Cable Connection Diagram For Controller
ST-37 – Instruction Manual V. a) Cable Connection Diagram for Controller Particular attention should be paid when making cable connections with the controller. Especially, the grounding conductor should be connected properly. PE-GROUND (YELLOW-GREEN) N- NEUTRAL (BLUE) L- PHASE (BROWN) - 22 -... -
Page 23: Table Of Contents
TECH Table of Contents I. Description..................4 II. Regulator Functionality..............5 II.a) Main Page................5 II.b) Manual Mode................5 II.c) Feed Time................6 II.d) Feed Interval................7 II.e) Fan Operation in Sustain Mode..........7 II.f) Fan Interval in Sustain Mode.............7 II.g) Feeder...................8 II.h) Blow..................8 II.i) Pump Switch-on Temperature............9 II.j) Central Heating Hysteresis............9... - Page 24 ST-37 – Instruction Manual - 24 -...