Installation Requirements - Rinnai EHP-HS190M-IN2 User's And Installer's Manual

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5 5 I I N N S S T T A A L L L L A A T T I I O O N N R R E E Q Q U U I I R R E E M M E E N N T T S S
6. INSTALLATION REQUIREMENTS
I I f f t t h h e e t t o o t t a a l l r r e e f f r r i i g g e e r r a a n n t t c c h h a a r r g g e e i i n n t t h h e e s s y y s s t t e e m m i i s s ≤1 1 . . 8 8 4 4 k k g g t t h h e e r r e e a a r r e e n n o o m m i i n n i i m m u u m m
s s u u r r f f a a c c e e r r e e q q u u i i r r e e m m e e n n t t s s . .
a
If the total refrigerant charge in the system is >1.84 kg it is necessary to comply with the minimum surface
requirements indicated in the following procedure:
1 calculate, based on piping length, the total refrigerant charge (mc)
2 calculate area room A (Aroom A)
3 calculate, through table 1, the maximum refrigerant charge allowed by room A (mmax)
4 i i f f m m m m a a x x ≥ m m c c t t h h e e u u n n i i t t c c a a n n b b e e i i n n s s t t a a l l l l e e d d i i n n r r o o o o m m A A
i i f f m m m m a a x x ≤ m m c c
1 calculate the area of room B adjacent to room A (Aroom B)
2 calculate, through table 2, the minimum total area (Amin total) required for the total refrigerant charge
(mc)
3 3 i i f f ( ( A A r r o o o o m m A A + + A A r r o o o o m m B B ) ) ≥ A A m m i i n n t t o o t t a a l l
4 calculate, through table 3.1 or 3.2, (depending on the power of the outdoor unit), the minimum area of
natural ventilation opening between room A and room B
5 the unit can be installed in room A if
There are 2 ventilation openings (permanently open) between room A and B, 1 at the top and 1 at the
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bottom.
Lower opening: the lower opening must meet the minimum area requirements (VAmin). It must be as
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close to the floor as possible. If the ventilation opening starts from the floor, the height should be
≥20mm. The lower part of the opening must be less than 100 mm from the floor. At least 50% of the
required opening area must be <200 mm from the floor. The entire area of the opening must be <300
mm from the floor.
Upper opening: the upper opening area must be greater than or equal to the lower opening. The lower
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part of the upper opening must be at least 1.5 m above the upper part of the lower opening.
Outward ventilation openings are NOT considered suitable ventilation openings (the user can lock them
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when it is cold).
i i f f ( ( A A r r o o o o m m A A + + A A r r o o o o m m B B ) ) < A A m m i i n n t t o o t t a a l l call the retailer
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a Indoor unit
A Room where the unit is installed.
B Room adjacent to room A.
Area A+B must be greater than or equal
to the minimum surface required in table
2 according to the total charge.