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Accessory Parts; Cautions For Installation - Toshiba VN-M150HE Installation Manual

Air to air heat exchanger
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Air to Air Heat Exchanger
2

Accessory Parts

Name
Quantity
Shape
Installation manual
1
CD-ROM (Owner's manual
1
and Installation manual)
Owner's manual
1
Adapter
4
Screw
16/24
3

Cautions for Installation

Make the inspection opening at the specific place on the ceiling so the constant cleaning or the equipment checking
of filter and heat exchange element can be performed.
• The inspection opening shown below is necessary to clean the heat exchange element and the filter as
required. If not cleaned, they are likely to get clogged, resulting in degradation of performance.
• Use forklift to carry in the Air to Air Heat Exchanger units and use winch or hoist at installation of them.
EA
(Exhaust
air)
Outdoor side
OA
(Outdoor
air)
150 to
250
For the inspection of Filters,
Heat Exchange Elements,
Fans, Motors and Damper.
Model No.
A (mm)
VN-M150HE, M250HE
VN-M350HE
VN-M500HE, M650HE
1140
VN-M800HE, M1000HE
1189
7-EN
AMP Air Conditioning
Installation Manual
Usage
(Hand it to the customers.)
(For other languages that do not appear in this manual, please refer
to the enclosed CD-ROM.)
(Hand it to the customers.)
Connection parts for the duct
Screws for attaching the adapter
B
C
RA (Return air)
Indoor side
Centre of gravity
SA (Supply air)
Inspection Opening 450 × 450
or more
B (mm)
C (mm)
Weight (kg)
900
900
290
36
900
900
290
38
1140
350
53
1189
400
70
Air to Air Heat Exchanger
• Helmet must be worn to protect your head from falling objects.
Especially, when you work under an inspection opening, helmet must be worn to protect your head from
falling objects from the opening.
• Observe the following conditions when using the Air to Air Heat Exchanger.
Installation requirements
Outdoor air conditions
Return air conditions
Do not install the Air to Air Heat Exchanger in a place where flames can come into contact with the unit.
If the Air to Air Heat Exchanger is used for a long time without observing the conditions above, deterioration or
deformation of resin parts will occur and a malfunction may result.
• Dewing and frosting.
• In cold regions, the surface of the unit or the duct connector may be affected by condensation or frosting
depending on the outdoor air conditions or temperature/humidity of the ceiling cavity even though the
conditions for use are observed. In this case, add a heat insulator.
• Do not install the unit in a place where there is something that must not become wet. Depending on the
temperature or humidity of outdoor air and the installation place, water droplets may fall from the unit.
• As shown in the figure to the below, suppose a high temp absorbing air condition A and a low temp absorbing
air condition B are plotted on the air line figure, then a high temp air A is heat-exchanged by the unit and goes
out of the saturation curve as shown by Point C. In this case, the unit will be dewed or frosted. To avoid this,
heating a low temp air B up to B' is required so as to get C' below the saturation curve, before using the unit.
Unit: mm
C
B
Dry-bulb temperature (°C)
• Refrain from the following duct installation works.
1) Excessive bending
• Do not install it near the water-heater
• Do not use in bathrooms or food preparation areas or in similar condition place.
If the unit is used at the place of much soot and high humidity large amounts of oily smoke, the filter or the
heat exchange element gets clogged and it will be disable to be use.
• Duct length must be longer than 850 mm.
Heat exchange
element
2
2
2
2
– 4 –
Temperature range −10°C to +40°C, relative humidity 80% or less
:
Temperature range −15°C to +43°C, relative humidity 80% or less
:
:
Temperature range +5°C to +40°C, relative humidity 80% or less
A
C'
B'
2) Multi-times bending
3) Making the connecting duct
smaller
www.ampair.co.uk | sales@ampair.co.uk
Installation Manual
4) Bending near the exhaust air
duct
EN
8-EN

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