Noritz NCC199CDV, Installation Manual

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CR60-IM.v0429.4
Condensate Drain to Floor or with Pump
• Each CR60 rack unit comes with a condensate drain pre-piped which must be properly drained to
ensure proper operation of this appliance.
• The pH level of the condensate is approximately 2-3. An external neutralizer must be installed on the
drain piping prior to disposal when required by local code or when the condensate could cause
damage.
•
For condensate piping discharging to a floor drain, an airgap must be maintained. Refer to local
plumbing code for minimum requirements.
•
For long runs or where the drain is above the CR60, a condensate pump may be required (field
supplied). Size the pump to allow for a maximum condensate discharge of 2 GPH/unit (Ex. 6 units =
12GPH) from the water heater.
•
NT-20A commerical condenstate neutralizer kit accessory
(connect up to maximum of fifteen (15) condensing water heaters in a multi system).
The NT-20A will need to be discharged to an acceptable location. For long runs or with a drain above
the CR60, a condensate pump is needed, followed by piping to a floor drain. Refer to NT-20A
Installation Manual for full installation and usage instructions.
*
Note: The neutralizer is NOT included in the Commercial Water Heating System package. The optional
neutralizer can be purchased separately (Noritz Part# NT-20A).
• The end of the drain pipe must not be submerged in water or blocked in any way. To ensure proper
drainage, leave the end of the drain pipe open to the atmosphere. Also, make sure that there are no
obstructions blocking the drain line from discharging condensate outlet.
• Be sure to check that condensate is freely flowing from the drain piping after the system has been
installed. Condensate will begin flowing out of the CR60 within 15-20 minutes after operation has
started.
• If the drain line becomes clogged or frozen, condensate water will flow back into the water heater and
a "90" error code will flash on the remote controller, stopping the tankless water heater operation. If
this occurs, clear the clog or frozen water so that condensate can freely flow again. Apply freeze
prevention measures (when necessary) to prevent the drain line from clogging or freezing.