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

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
National Electrical Code, ANSI/NFPA No. 70.
Indoor water heaters are equipped with a three-
prong (grounding) plug for your protection 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 junction box
for the grounding connection.
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 National 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
attached to the inside of the front cover.

Adjust for High Altitude

On the SW1 DIP switch (tan switches), set 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.
When the DIP switch is adjusted, it is not necessary to
adjust the gas pressure setting for high altitude.
Altitude
0-2000 ft (0-610 m)
2001-5200 ft (610-1585 m)
5201-7700 ft (1585-2347 m)
7701-10200 ft (2347-3109 m)
Adjust for Vent Length
(indoor models only)
Adjust switch No. 1 in the SW1 DIP switch (tan
switches) if required. Refer to the section "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 connections 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.
□
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 section
on Maximum Vent Length.
VC Series Manual
SW1 SW1
Switch Switch
No. 2 No. 3
OFF OFF
OFF ON
ON OFF
ON ON
21