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30 305, 505, 705 Indoor Manual
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.
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: Accessories Necessary:
2
(1) 2-Unit connection cable
or (1) Multi-Unit connection kit
3
(1) Multi-Unit connection kit
and (1) Multi-Unit connection cable
4
(1) Multi-Unit connection kit
and (2) Multi-Unit connection cables
5
(1) Multi-Unit connection kit
and (3) Multi-Unit connection cables
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.
WARNING
DO NOT adjust the other dip
switches unless specifically
instructed to do so.
0-2000 ft
(0-610 m)
2001-5200 ft
(610-1585 m)
5201-7700 ft
(1585-2347 m)
7701-10200 ft
(2347-3109 m)
Switch No. 2 OFF OFF ON ON
Switch No. 3 OFF ON OFF ON
Switch No.
F
O
F
8
5
7
6
4
3
ON
1
2
Switch No.
F
O
F
8
5
7
6
4
3
ON
1
2
Switch No.
F
O
F
8
5
7
6
4
3
ON
1
2
Switch No.
F
O
F
8
5
7
6
4
3
ON
1
2