Disposal Of Condensate - Navien CR-180 Installation Manual

I

Disposal of Condensate:

� This Navien water heater is a high efficiency gas appliance that creates
condensation when it operates. Condensation has an acidic (pH) of approximately
3-4. Follow you r local code with regards to the disposal of condensation . Here are
several options for the Disposal of Condensate (see diagram below) :
CD From water heater direct to drain;
® From water heater to neutralizer to drain ;
@ From water heater to laundry tub (bottom of water heater must be above the
height of laundry tub; m ust have a negative slope to properly drain);
@ From water heater to condensate pump to laundry tub (for long distances
between water heater and laundry tub or when bottom of water heater is
installed below height level of laundry tub) .
� All Navien's CR and CC model water heaters are condensing gas appliances. A
condensate trap comes factory installed inside each water heater;
� All condensate m ust be drained in accordance with all local regulations. Navien
recommends draining the condensate to a laundry tub as the alkalie in the
detergent from the washing machine will neutralize the acid in the condensation . If a
laundry tub is not close by, you may need to install a condensate pump to push the
condensate to the nearest laundry tub or consider installing a condensate
neutralizer so that you can release the neutralized (non-acidic) water into a regular,
nearby drain;
� If a neutralizer is installed, periodic replacement of the lime stone (or neutralizing
agent) will be required . The rate of depletion of the lime stone varies upon usage of
the water heater. During the first year of operation, please check the neutralizer
every few months for depletion. If you notice any depletion, order some
replacement neutralizer lime stone.
� Use only corrosion-resistant materials for the condensate drain lines such as %" ID
PVC pipe vinyl or plastic hose ;
G)
Disposal of Condensate
'