Part 2 - Before You Start; What's In The Box; How The Heater Operates; Optional Equipment - Westinghouse WGR-076 Series Installation, Start-Up, Maintenance, Parts, Warranty

6
Approximate Time / Temperature Relationships in Scalds
120 F
o
125 o F
130 o F
135 o F
140 F
o
145 o F
150 o F
155 o F
Table 1 - Approximate Time / Temperature Relationships in Scalds

Part 2 - Before You Start

Remove all sides of the shipping crate of the water heater.
A. What's in the Box
Components included with the water heater:
• Intake PVC Tee with Screens
• Exhaust PVC Coupling with Screens
• Temperature and Pressure Relief Valve (Ships Installed)
• High Output Cold Water Dip Tube
• Installation Manual and Warranty
• User's Information Manual
B. How the Heater Operates
Modulating Condensing Technology is an intelligent system
that delivers highly efficient water heating, maximizing
efficiency by measuring the data parameters of your water
heating system. Some of its features are:
Stainless Steel Water Storage Tank
The stainless steel water storage tank has a combustion
chamber submerged into the tank water. When the water heater
is fired, combustion gases heat the combustion chamber walls,
transferring heat directly into the surrounding water. These hot
gases are blown into secondary heat exchanger coils, where
more heat from these gases is transferred into the water.
Modulating Combustion System
The control monitors the water heating system
temperatures, regulating burner output during operation to
match system demand. This increase in efficiency allows for
substantial fuel savings.
High Output Cold Water Dip Tube
(Optional - Shipped with Heater)
When installed, the High Output Cold Water Dip Tube increases
hot water draw and recovery time by 20% and decreases thermal
efficiency by a small amount.
Gas Valve
The gas valve senses suction from the blower, allowing gas to
flow only if the gas valve is energized and combustion air is
flowing.
Tank Sensor
This sensor monitors system water temperature. The control
module adjusts burner firing rate so the outlet water temperature
meets the set point.
Control
The integrated control system monitors water temperature and
adjusts fan speed to regulate the heater's energy output. This
allows the unit to deliver the required amount of heated energy
and nothing more.
WHL-001 Rev. 3.16.15
More than 5 minutes
1 1/2 to 2 minutes
About 30 seconds
About 10 seconds
Less than 5 seconds
Less than 3 seconds
About 1 1/2 seconds
About 1 second
and
Burner
Constructed of high grade stainless steel, the burner uses pre-
mixed air and gas and provides a wide range of firing rates.
Condensate System with Built-In Neutralizing Cartridge
This is a condensing high efficiency water heater with a
condensate removal system. Condensate is nothing more
than water vapor derived from combustion products, similar
to that of an automobile when it is initially started. It is very
important that the condensate line slopes away from the
water heater and down to a suitable inside drain.
The Built-In Neutralizing Cartridge is filled with marble chips
that neutralize the condensate before it flows into a local
drain. The marble chips dissolve over time. The cartridge is
designed to be easily removed, refilled with marble chips, and
reinstalled.
If the condensate outlet on the heater is lower than the drain,
us a condensate removal pump (Part # 554200, available
from Westinghouse). In addition, local authorities may
require an additional condensate neutralizer to neutralize the
condensate.
It is also very important not to expose the condensate line to
freezing temperatures or any type of blockage. Plastic tubing
must be the only material used for the condensate line. Steel,
brass, copper, or other materials will be subject to corrosion
or deterioration. A second vent may be necessary to prevent
condensate line vacuum lock on a long horizontal run. Also,
an increase in pipe size may be necessary to allow condensate
to drain properly. Support of the condensate line may be
necessary to avoid blockage of the condensate flow.
Spark Ignition
The burner flame is ignited by applying high voltage to the
system spark electrode. This causes a spark from electrode to
ground.
C. Optional Equipment
Optional equipment available from Westinghouse (and Part
#):
• 3" Stainless Steel Outside Vent Termination Kit (V1000)
• 2" PVC Concentric Vent Kit (KGAVT0501CVT)
• 3" PVC Concentric Vent Kit (KGAVT0601CVT)
• 3" Polypro Vent Kit (8400P-001)
• 3" Polypro Pipe
(33' length # 8400P-002, 49.5' length # 8400P-003)
• Outdoor Sensor (7250P-319)
• Condensate Neutralizer Replacement (7700P-026)

Part 3 - Prepare the Water Heater

Remove all sides of the shipping crate to allow the heater to
be moved into its installation location.
COLD WEATHER HANDLING - If the water heater has
been stored in a very cold location (BELOW 0
installation, handle with care until the components come to
room temperature. Failure to do so could result in damage to
the water heater.
F) before
o