Introduction; Safety; Electrical; R410A Refrigerant - Rheem RUUD Iraining Manual

Introduction

This is a training manual not a job site service manual nor a parts manual. The intent of this
manual is to train users of the Heat Pump Water Heater manufactured by Rheem. This manual
does not assume any particular user liability, skill level, experience or expertise. The terms and
component parts used in this manual are current manufactured items or vendor provided items
used in Rheem Heat Pump Water Heater. Exercise care when installing and repairing electric
water heaters. Finally, we encourage all users to exercise good common sense and check your
local plumbing and electrical building codes.

Safety

E l e c t r i c a l
Troubleshooting and repairing a residential electric water heater can expose you to electrical
shock. Some of the diagnostic procedures require the presence of electricity. Use extreme
caution when performing these procedures. When replacing an unserviceable component, turn
off all power to the water heater and check for the presence of power with a multimeter or test
lamp.
R 4 1 0 a R e f r i g e r a n t
This water heater contains a sealed gas refrigerant. Please check your local
licensing requirements to handle and service sealed refrigerant appliances.
Release of the refrigerant into the atmosphere may be considered illegal.
R-410A is an ozone-friendly refrigerant designed to replace R-22. R-410A refrigerant does not
contribute to ozone depletion. The Clean Air Act mandates that all HVAC equipment
manufacturers cease producing equipment with R-22 refrigerant on January 1, 2010.
S c a l d i n g
To comply with safety regulations the thermostats were set as 120° F before the water heater was
shipped from the factory. Households with small children, disabled, or elderly persons may
require a 120° F or lower thermostat setting to prevent contact with 'HOT' water and potential

scalding.

F l a m m a b l e V a p o r s
Gasoline, as well as other flammable material and liquids (adhesives, solvents, etc.), and vapors
they produce are extremely dangerous. Do not handle, use or store gasoline or other flammable
or combustible materials anywhere near or in the vicinity of a water heater. The arc drawn in the
water heater controls can ignite these vapors. Failure to do so can result in property damage,
bodily injury or death.
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Heat Pump Water Heater