Final Checklist; The Installa On Must Conform With Local Codes Or; In The Absence Of Local Codes, With The Na Onal; Fuel Gas Code, Ansi Z223.1/Nfpa 54, Or The Natural Gas And Propane Installa On Code, Csa - Rinnai REU‐VC2528FFUD‐US Installation And Operation Manual

Final Checklist
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The water heater is not subject to corrosive
compounds in the air.
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The water supply does not contain chemicals or
exceeds total hardness that will damage the heat
exchanger.
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Clearances from the water heater unit are met.
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Clearances from the vent termina on / air intake
are met.
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For indoor models, ensure you have used the
correct ven ng products for the model installed
and that you have completely followed the
ven ng manufacturer's installa on instruc ons
and these installa on instruc ons.
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For indoor models, verify that the vent system
does not exceed the maximum length for the
number of elbows used.
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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.
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For indoor models, verify that the vent pipe has a
downward slope or grade to the outside of 1/4
inch per foot (1.2° ) OR if the vent pipe is sloped
toward the water heater (as some local codes
require), that a condensate collector is installed
to allow condensa on to drain away from the
water heater to a proper drain source.
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For indoor models, verify that condensate will not
be allowed to drain back into the water heater.
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Purge the water line of all debris and air by
closing the hot isola on valve and opening the
cold isola on valve and its drain. Debris will
damage the water heater. Use a bucket or hose
if necessary.
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Ensure that hot and cold water lines are not
crossed to the unit and are leak free.
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Clean the inlet water filter by closing the cold and
hot water inlet isola on (shut‐off) valves. Put a
bucket under the filter at the bo om of the water
heater to catch any water that is contained inside
the unit. Unscrew the water filter. Rinse the
filter to remove any debris. Install the filter and
open the isola on valves.
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Ensure that a pressure relief valve is installed with
a ra ng that exceeds the BTU input of the water
heater model. Refer to the ra ng plate on the
side of the water heater for BTU input.
24
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A manual gas control valve has been placed in the
gas line to the water heater.
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Check the gas lines and connec ons for leaks.
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Confirm that the gas inlet pressure is within
limits.
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Confirm that the water heater is rated for the gas
type supplied.
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Confirm that the electricity is supplied from a 120
VAC, 60 Hz power source, is in a properly
grounded circuit, and turned on.
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Verify the temperature controller is func oning
properly.
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Verify that switches No. 2 and No. 3 in the SW1
DIP switch (tan switches) is set correctly for your
al tude.
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Verify the system is func oning correctly by
connec ng your manometer to the gas pressure
test port on the water heater. Operate all gas
appliances in the home or facility at high fire. The
inlet gas pressure at the water heater must not
drop below that listed on the ra ng plate.
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If the water heater is not needed for immediate
use, then drain the water from the heat
exchanger.
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Install the front panel.
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Explain to the customer the importance of not
blocking the vent termina on or air intake.
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Explain to the customer the opera on of the
water heater, safety guidelines, maintenance, and
warranty.
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The installa on must conform with local codes or,
in the absence of local codes, with the Na onal
Fuel Gas Code, ANSI Z223.1/NFPA 54, or the
Natural Gas and Propane Installa on Code, CSA
B149.1. If installed in a manufactured home, the
installa on must conform with the Manufactured

Home Construc on and Safety Standard, Title 24

CFR, Part 3280 and/or CAN/SCA Z240 MH Series,
Mobile Homes.
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Inform the consumer if the isola on valves are
not installed or if a water so ening system is not
installed.
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Leave the en re manual taped to the water
heater (indoor models), temperature controller
(outdoor models), or give the en re manual
directly to the consumer.
VC Series Manual