EDMMT712101
Product Introduction
VAM-HVE/HVLT Series
15
1.3.5
The Operation is Available when the Outdoor Air Temperature is Down to -15°C
(Operation when the outdoor air temperature becomes lower than -10°C)
When the outdoor air suction temperature becomes lower than -10°C, the unit is changed to intermittent operation to prevent
freezing of the heat exchanger element and dew condensation within the unit.
Intermittent operation
The outdoor air thermistor (standard equipment) within the unit detects the temperature. According to the detected temperature,
the following operation determines.
<Step 1>
The air supply fan is changed to intermittent operation, when the temperature is lower than -10°C.
The intermittent operation of the air supply fan is changed to an operation of each cycle for 45 minutes’ operation after stopping
operation for 15 minutes.
The exhaust fan operates continuously according to setup.
<Step 2>
When the temperature becomes lower than -15°C, the unit stops operation to prevent any defect, such as dew condensation and
freezing. The unit does not ventilate.
But, to detect the elevation of the outdoor air temperature, the unit operates for 5 minutes per hour.
The control by the external damper (local purchase) is available.
When the unit is not operating, the unit prevents the cool outdoor air from invading.
The contact signal is received from the connector X3M to the external damper. Therefore, the operation of the unit is controlled in
conjunction with the external damper.
Note:
Local setting is required.
1.3.6
The High Efficiency Filter (that has 65% of Average Dust Collecting Efficiency) is Suitable
1.3.7
Additional Optional Accessories
Built-in optional high efficiency filter
It greatly reduces the installation space.
The installation of access doors and the unit can be reduced.
BRP4A50A
Refer to page 53 Heater control kit for the detail.
High efficiency filter
Air filter
Maintenance cover
Control box
Heat exchanger element
Install the high efficiency
filter to meet the direction
of the arrow of the name plate.
High efficiency filter
Rail
Rail
Install the high efficiency filter
along the inside of the rail.
AIR
FLOW
The side of heat
exchanger element
Name plate
High efficiency
filter
Summary of Contents for VAM Series
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Page 4: ...EDMMT712101 2 Table of Contents 17 6 Precautions for Design and Installation 181 ...
Page 56: ...Control System EDMMT712101 54 VAM HVE HVLT Series C 3P343420 1E ...
Page 138: ...Installation Manual EDMMT712101 136 VAM HVE HVLT Series 3P607378 3C ...
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Page 141: ...EDMMT712101 Installation Manual VAM HVE HVLT Series 139 C EM20A032 ...
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Page 147: ...EDMMT712101 Details of Optional Accessories VAM HVE HVLT Series 145 3P607378 3C ...
Page 148: ...Details of Optional Accessories EDMMT712101 146 VAM HVE HVLT Series 3P607378 3C ...
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Page 155: ...EDMMT712101 Details of Optional Accessories VAM HVE HVLT Series 153 4P457318 1D ...
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