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INSTALLATION INSTRUCTIONS
Condensate
Condensate Disposal
Be sure the condensate runs freely to a drain and
does not accumulate inside the exhaust common
venting pipe. In cold climates, precautions may need
to be taken to ensure that the condensate drain does
not freeze.
All condensation must be drained and disposed of per
local codes and requirements.
Use corrosion resistant pipe or flexible tube for the
condensate drain line.
Fill water until the ball is fully covered by water.
Multiple Unit Controls
RTGH-CM95DVLN includes manifold control, and does not require other multiple unit controls. RTGH-C95DVLN
requires one of the following optional Multiple Unit controls to manifold two or more water heaters together.
Without the Multiple Unit Control, water heaters operate independently
*Maximum number of water heaters per one common vent system is 8.
NO other manufacturer's manifold systems are suitable for use with Rheem's tankless water heaters.
NOTICE:
DO NOT use other manufacturer's common vent system with Rheem's tankless water heaters. DO NOT use other
manufacturer's water heaters with Rheem's common vent system.
IMPORTANT:
DO NOT connect power until vent installation is complete. Upon initial installation and start up, only connect power to one
water heater at a time. Wait ninety (90) seconds between connecting power to the water heaters.
Refer to the installation instructions of the manifold controls for more information.
30
Multiple Unit
RTGH-C95DVLN RTGH-CM95DVLN
Controls
EZ Link
Optional
MIC-6
Optional
MIC-185
Optional
MIC-185 with
Optional
MICS-180
Manifold Control
N/A
The drain pipe (along its entire length) must be at
least the same diameter as the drain line.
The drain line should be as short as possible and
have a downward slope toward the end.
The end of the drain pipe should be open to the
atmosphere. The end should not be under water or
other substances.
DO NOT connect the drain pipe directly to the drain
sewer.
The drain pipe can be connected to a neutralizer.
Follow the neutralizer's instructions.
Maximum Number of
Water Heaters
Not required
2
Not required
6
Not required
6
Not required
20*
Included
20*
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