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High Altitude Installations
Set dip switches 2 and 3 to the values shown in table
below for your altitude. The default setting for the
appliance is 0-2000 ft (0-610 m) with switches No. 2
and No. 3 in the OFF position.
Switch No. 2
Switch No. 3
Connecting Multiple Water Heaters
The 2-Unit connection cable is an optional accessory
that connects 2 water heaters and allows them to
function as one hot water source.
The Multi-Unit connection kit and Multi-Unit connection
cables are optional accessories that connect 2 to 5
water heaters and allow them to function as one hot
water source.
The Multi-Unit connection kit includes a PC board and
one Multi-Unit connection cable.
Refer to the instructions that come with the accessory
for complete installation information.
Number of Connected Water Heaters:
2
3
4
5
30
0-2000 ft
2001-5200 ft
(0-610 m)
(610-1585 m)
OFF
OFF
Switch No.
Switch No.
ON
O
O
1
F
F
2
F
F
3
4
5
6
7
8
(1) 2-Unit connection cable
(1) Multi-Unit connection kit
(1) Multi-Unit connection kit
(1) Multi-Unit connection kit
305, 505, 705 Indoor Manual
WARNING
5201-7800 ft
(1585-2377 m)
OFF
ON
OFF
Switch No.
ON
O
1
F
2
F
3
4
5
6
7
8
Guidelines
• Do not install both the 2-Unit connection cable and
the Multi-Unit connection kit because they are not
designed to operate together.
• Water heaters should be installed less than 18
inches apart so that the cables will reach between
units and to prevent temperature fluctuations (cold
water sandwich effect) when the water is shut off
and turned back on.
• Temperature settings can only be changed on the
controller for the primary unit.
Accessories Necessary:
or
and
and
and
DO NOT adjust the other dip
switches unless specifically
instructed to do so.
7801-10200 ft
(2378-3109 m)
ON
ON
ON
Switch No.
ON
O
1
F
2
F
3
4
5
6
7
8
(1) Multi-Unit connection kit
(1) Multi-Unit connection cable
(2) Multi-Unit connection cables
(3) Multi-Unit connection cables
ON
1
2
3
4
5
6
7
8
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