Water Heater Connection - S&P DUOVENT MODULAR DV Instruction Manual

Ventilation units with heat recuperation
26
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DUOVENT
5.2.4 WATER HEATER CONNECTION (MARKED "DCA" OR "DCB" IN UNIT CODE)
The unit fitted with the water heater is to be connected to the heating medium by means of the 3-way mixing unit (see "Types of ESU control
units"). The water heater outlets are located on the front of the unit and are threaded. When tightening the heat exchanger connections, it is
necessary, for example, to hold the heat exchanger neck with a second wrench so that the tightening torque is not transmitted to the heat
exchanger body.
Table of dimensions of water cooler connection necks:
Unit size
DV/RV 8500
DV/RV 10100
DV/RV 12000
DV/RV 14500
For correct connection, the direction of water flow is indicated on the housing of the unit by auxiliary labels. The exchanger must be connected in
counter-current to the flow of air passing through (in co-current connection, the exchanger loses approx. 25 % of its output). I.e. that the heating
water inlet is always on the far side from the air inlet on the front surface of the exchanger - see. following image.
heating water
outlet
air flow
direction
MODULAR DV/RV
heater/cooler type
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IBW-A DUOVENT 8500-ErP2018-xV
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IBW-B DUOVENT 8500-ErP2018-xV
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IBW-A DUOVENT 10100-ErP2018-xV
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IBW-B DUOVENT 10100-ErP2018-xV
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IBW-A DUOVENT 12000-ErP2018-xV
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IBW-B DUOVENT 12000-ErP2018-xV
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IBW-A DUOVENT 14500-ErP2018-xV
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IBW-B DUOVENT 14500-ErP2018-xV
AV2 unit position
heating water inlet
thread
1 1/2"
1 1/2"
1 1/2"
1 1/2"
2"
2"
2"
2"
AV unit position
heating water inlet
air flow
direction
heating water outlet