High Altitude; Wiring - Rheem Maximus Manual

Residential super high efficiency water heater
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INSTALLATION
CONDENSATE NEUTRALIZER
CONDENSATE DRAIN
To open drain
• Condensate is mildly acidic and should be collected and
disposed per local codes. Certain local codes require
condensate to be neutralized before it is disposed. This
water heater comes with a pre-packaged neutralizer bag.
Pour the neutralizer in the exhaust-tee prior to installing
vent pipes. Make sure the neutralizer is at the bottom of the
exhaust-tee.
• Use only PVC, CPVC pipe or flexible tubing suitable for use
with flue condensate as drain line. If flexible tubing is used
ensure that there are no bends or twists and has gradual
slope to condensate drain.
• The drain line (along its entire length) must be at least the
same diameter as the drain of the condensate trap (1/2").
• The drain line must be short as possible and have a
downward slope towards the condensate drain. If suitable
slope is not provided, the drain line can get blocked and
will cause improper operation of the water heater. If a
downward slope cannot be provided, a condensate pump
should be used to pump condensate to a suitable drain.
• The end of the drain line should be open to the atmosphere.
The end should not be under water.
• DO NOT connect the drain line directly to the sewer drain.
• DO NOT connect the drain line with drains from other
appliances.
• DO NOT drain condensate into the water heater drain pan.
• DO NOT drain condensate over public way, walkway or other
areas where it will create slippery condition, which could
lead to personal injury.

HIGH ALTITUDE

Input rating of this water heater is based on sea level
operation. At higher elevations the actual input rate may
be lower than the value listed on the rating label due to the
derating of Natural Gas and LP Gas.
Natural Gas models with sea level rated input rates of 50,000
BTUH require adjustments on touch screen display for high
altitude installations above 2000ft. These adjustments
10
are activated only on models that require high altitude
adjustments
Refer to vent length chart in 'Venting and Air Intake' section for
appropriate elevations, vent sizes, and lengths.
WARNING:
!
Failure to install a water heater suitable for the altitude at
the location it is intended to serve, can result in improper
operation of the appliance resulting in property damage and/
or producing carbon monoxide gas, which could result in
personal injury, or death.

WIRING

118°
warm
Settings
Status
1. MAIN SCREEN
2. SETTINGS SCREEN
basic settings
Temperature Display
Screen Adjustment Lock?
Beep on Alarm
EcoNet Network Instance
Elevation
3. BASIC SETTINGS SCREEN: ELEVATION NORMAL
basic settings
Temperature Display
Screen Adjustment Lock?
Beep on Alarm
EcoNet Network Instance
Elevation
4. BASIC SETTINGS SCREEN: ELEVATION HIGH
Status: Standby
hot
very hot
Disable
Service
Fahrenheit
No
Disabled
1
Normal
Fahrenheit
No
Disabled
1
High

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