Connect Electricity; Adjust For High Al Tude; Adjust For Vent Length (Indoor Models Only); Checklist For Gas And Electricity - Rinnai RL75i Installation And Operation Manual

Direct vent tankless water heater
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Connect Electricity

WARNING
Do not use an extension cord or an adapter plug with
this appliance.
The water heater must be electrically grounded in
accordance with local codes and ordinances or, in the
absence of local codes, in accordance with the
Na onal Electrical Code, ANSI/NFPA No. 70.
Indoor water heaters are equipped with a three-
prong (grounding) plug for your protec on against
shock hazard and should be plugged directly into a
properly grounded three-prong receptacle. Do not
cut or remove the grounding terminal from this plug.
Do not rely on the gas or water piping to ground the
water heater. A screw is provided in the junc on box
for the grounding connec on.
The water heater requires 120 VAC, 60 Hz power from
a properly grounded circuit.
If using the 5 foot long power cord, plug it into a
standard 3 prong 120 VAC, 60 Hz properly grounded
wall outlet.
On outdoor models, a disconnect switch must be
provided and installed for the incoming 120 VAC
power. It should be a type that is suitable for outdoor
use. Check the Na onal Electrical Code, ANSI/NFPA
70 and your local codes for a proper switch type to
use in your area.
The wiring diagram is located on the Technical Sheet
a ached to the inside of the front cover.
Adjustment for High Al tude
Installa ons
On the SW1 DIP switch (tan switches), set switches 2
and 3 to the values shown in table below for your
al tude. The default se ng for the appliance is 0-
2000
(0-610 m) with switches No. 2 and No. 3 in the
OFF posi on.
When the DIP switch is adjusted, it is not necessary to
adjust the gas pressure se ng for high al tude.
0-2000
2001-5200
5201-7700
7701-10200
Adjustment for Vent Length
(Indoor models only)
Adjust switch No. 1 in the SW1 DIP switch (tan
switches) if required. Refer to the sec on "Maximum
vent length".

Checklist for Gas and Electricity

A manual gas control valve is placed in the gas
line to the water heater.
Check the gas lines and connec ons for leaks.
Confirm that the gas inlet pressure is within
limits.
Confirm that the water heater is rated for the gas
type supplied.
Confirm that the electricity is supplied from 120
VAC, 60 Hz power source and is in a properly
grounded circuit.
Confirm an extension cord or an adapter plug has
not been used with the water heater.
For indoor models verify that switch No. 1 in the
SW1 DIP switch (tan switches) has been adjusted
for vent length if necessary. Refer to the sec on
on Maximum Vent Length.
VC Series Manual
Al tude
(0-610 m)
(610-1585 m)
(1585-2347 m)
(2347-3109 m)
SW1
SW1
Switch
Switch
No. 2
No. 3
OFF
OFF
OFF
ON
ON
OFF
ON
ON
21

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