Instructions / Assembly

56
12 Setting the DIP Switches
How to change the DIP switches
1. Disconnect the electrical power to the Water
Heater before changing the DIP switches.*
2. Open the front cover of the Water Heater (4
screws).
3. Adjust the DIP switches.
4. Close the front cover of the Water Heater (4
screws).
5. Reconnect the electrical power to the Water
Heater.
* Failure to perform this step will result a “73” code
displayed on the Remote Controller and a cease
in operation.
If this occurs, disconnect, then reconnect the
electrical power to the Water Heater to reset the
system.
• When using 2 in. flexible PP material
Change DIP switch #7 by following the table below.
Vent length
DIP switches
#7 #8
Short length 5 ft (1.5 m) - 15 ft (4.5 m)
 
Long length 15 ft (4.5 m) - 35 ft (10.5 m)
 
ON =  / OFF = 
Circuit Board
1 23456 7 8
OFF
ON
The location of DIP switch bank
The DIP switch bank is placed
on the circuit board.
DIP Switch Listing
[For outdoor installation]
Turn ON DIP switch #2.
[For using SV Conversion Kit (SV-CK-2)]
Turn ON DIP switch #3.
[For installing at an altitude of 2,000 ft (610 m) or
higher]
Change DIP switch #5 and #6 by following the table
below.
High elevation adjustment
DIP switches
#5 #6
0-2,000 ft (0-610 m)
 
2,001-4,000 ft (611-1,219 m)
 
4,001-7,000 ft (1,220-2,134 m)
 
7,001-10,000 ft (2,135-3,048 m)
 
ON =  / OFF = 
[For adjusting to accommodate longer vent runs]
• When using PVC/CPVC/PP material
Change DIP switch #7 and #8 by following the table
below.
Vent length condition
DIP switches
#7 #8
①Less than 33 ft using 2 in. (50 mm) pipe
 
②33 ft or more using 2 in. (50 mm) pipe
 
③Less than 75 ft using 3 in. (75 mm) pipe
 
④75 ft or more using 3 in. (75 mm) pipe
 
ON =  / OFF = 
Refer to page 20 for more details on ① to ④ .
• When using flexible pipe for chimney
Change DIP switch #7 by following the table below.
(DuraVent® - Flex Through Chimney w/ Air Intake
(Only 3 in.))
Vent
length
condition
DIP
switch
#7
Maximum equivalent
vent length*
V (Vertical)
+
H (Horizontal)
Equivalent
length
Short
length

< 50 ft (15 m)
Flexible pipe:
1 ft (0.3 m)
Rigid pipe:
1 ft (0.3 m)
90° elbow:
5 ft (1.5 m)
45° elbow:
3 ft (0.9 m)
Long
length

50 ft (15 m)–75 ft (22.5 m)
ON =  / OFF = 
* The maximum vent length includes elbows.
(Centrotherm® - Flex Through Chimney w/ Air Intake
(Only 3 in.))
Vent
length
condition
DIP
switch
#7
Maximum equivalent
vent length*
Equivalent
length
Short
length

Exhaust vent
V (Vertical) + H (Horizontal):
< 50 ft (15 m)
Air Intake:
< 50 ft (15 m)
Flexible pipe:
1 ft (0.3 m)
Rigid pipe:
1 ft (0.3 m)
90° elbow:
5 ft (1.5 m)
45° elbow:
3 ft (0.9 m)
Long
length

Exhaust vent
V (Vertical) + H (Horizontal):
50 ft (15 m)–75 ft (22.5 m)
Air Intake:
< 75 ft (22.5 m)
ON =  / OFF = 
* The maximum vent length includes elbows.
Setting the DIP Switches