Specifications

WR2-SERIES SYSTEM DESIGN (June 2010)
WR2SD-31
WR2-SERIES
SYSTEM DESIGN
4. INSTALLATION
4-1. PQRY-P-T(S)HMU/Y(S)HMU’s Installation
4-2. Installation Space
1. Install indoors; avoid exposing the unit to outside elements.
2. Do not install in an area where it could be subjected to direct heat.
3. Avoid installing the unit in a location where the operating sound could be an annoyance.
4. Install on a stable, load-bearing surface.
5. Ensure there is adequate drain flow from the unit when in heating mode;
6. See space requirements for installation and maintenance;
7. Do not install the unit in an environment that may have combustible gas, oil, steam, chemical gas like acidic solutions, su
lfur gas, etc.
8. Make sure the declining gradient of the exhaust pipe is higher than 1/100.
Service space
(front side)
Service space
(front side)
Top view
The space for control box
replacement
450
600
170
350
725
600
450
170
1100
550
(530)
(102)(53)
880
(23-11/16)
(23-11/16)
(17-3/4)
(6-3/4)
(21-11/16)
(43-5/16)
(20-7/8)
(17-3/4)
(6-3/4)
(4-1/16)
(34-11/16)
(28-9/16)
(2-1/8)
(13-13/16)
mm (in.)
In case of a single unit installation, 23-11/16 in. (600mm) or more of clearance space in the front of the unit makes for easier access
when servicing the unit.