Temperature Control - S&P DUOVENT MODULAR DV Instruction Manual

Ventilation units with heat recuperation
36
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DUOVENT
Basic dimensions of Digireg
The switchboard M3-E36 with protection level IP20 features dimensions of 660 x 280 x 120 mm.
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The switchboard Digireg (M3-Vx and M3-E36 / E72) with protection level IP65 features dimensions of 600 x 600 x 210 mm.
6.3.2 TEMPERATURE REGULATION
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The Digireg controller is designed to control the output of the heater or cooler of the air handling unit to reach the desired temperature. Digireg
can command direct cooling or a heat pump. There is a 3-point output for servo drive of the mixing valve, direct power outputs SSR for electric
heating or two analogue outputs 0–10 V / 0–20 mA. The heat pump or cooling unit is controlled by potential-free contacts.
– Regulation to a constant supply air temperature
It uses one temperature sensor in the supply pipe, the supply air is heated or cooled to the required set temperature within the minimum
and maximum configured temperature.
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Regulation to a constant temperature of the exhaust air
It uses one temperature sensor in the supply pipe, the supply air is heated or cooled to the required set temperature within the minimum
and maximum configured temperature.
– Spatial temperature control (for constant room temperature)
Cascade control is used with limitation of the minimum and maximum supply air temperature. The main sensor is placed in a ventilated
area, the supply air sensor is placed in the outlet of the unit in a place with sufficient air mixing. If the room temperature is higher than the
set value, the controller will try to reduce the supply air temperature to the set minimum supply air temperature. If the room temperature falls
below the set value, the controller tries to compensate for this by increasing the supply air temperature. The room temperature can be
selected as the room temperature, the temperature from the sensor in the controller, or from a separate sensor connected
motherboard. The controller cools or heats according to the set parameters in the automatic summer/winter mode according to the outdoor
temperature and time dependencies. Manual mode selection is also possible. The heater can be hot water type, controlled by a three-point
actuator, or electric type, directly controlled by SSR, or external TRIAC switches 0-10 V. Electric heater controlled by internal SSR can have
up to 72 kW depending on the cabinet, water heater is not limited (its power is determined by the mixing unit size). Cooling can be cold
water type, controlled by a 0-10 V analogue actuator or direct type in conjunction with a condensing cooling unit.
CAUTION!
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For units with a direct evaporator (marked DX and DXr in the unit code), it is possible to maintain the required air temperature in
the room with accuracy, depending on the correctness of the project and the correct function and setting of the ventilation
system with accuracy of ±2 °C.
MODULAR DV/RV
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M3-Vx switchboard with protection level IP20:
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to the