Installer’s Guide
7
Pre Boosted Gas Solar Water Heater MP15
H4099 4099 Rev. D
Installer’s Guide
Collectors – alignment and Incli-
nation
Step 7
Solar Collector Alignment
• For the most efficient solar gain, the
collectors must be aligned ±45° from
true north (i.e. north west to north
east). See
Collector Orientation
Compass
below.
Solar Collector Inclination
• For the most efficient solar gain, the
collectors must be inclined within
10° to 45° from horizontal. See
Collector Inclination Guide
right.
True North
NW
NE
Surface Plate
East
West
45°
50° from
true north
70° from
true north
45°
B
Collector Orientation Compass
True North
A
A = 500mm, or greater if roof allows
B = Between 10° and 45°
B
Note:
When establishing the correct Collector Orientation, please account
for the Magnetic Declination of your geographic location
Collector Inclination Guide
C
A
C
A. Dux preferred range
B. Industry accepted range
C. If orientations A or B are not practical, an additional collector can be
installed at the home owner’s discretion in range C (not required north
of Tropic of Capricorn)
True North
NW
NE
Surface Plate
East
West
45°
50° from
true north
70° from
true north
45°
B
Collector Orientation Compass
True North
A
A = 500mm, or greater if roof allows
B = Between 10° and 45°
B
Note:
When establishing the correct Collector Orientation, please account
for the Magnetic Declination of your geographic location
Collector Inclination Guide
C
A
C
A. Dux preferred range
B. Industry accepted range
C. If orientations A or B are not practical, an additional collector can be
installed at the home owner’s discretion in range C (not required north
of Tropic of Capricorn)