HTP EL-399NVWH - Manual (Page 30)

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LP- 346 REV. 3.20.14
The building owner is responsible for keeping the exhaust and intake terminations free of snow, ice, or other potential blockages, as
well as scheduling routine maintenance. Failure to keep the vent piping terminations clear and properly maintain the heater could result
in property damage, severe personal injury, or death.
For each floor containing bedroom(s), a carbon monoxide detector and alarm shall be placed in the living area outside the bedrooms,
as well as in the room that houses the heater. Detectors and alarms shall comply with NFPA 720 (latest edition). Failure to comply with
requirements for detectors and alarms could result in property damage, severe personal injury, or death.
DETERMINE LOCATION OF CONDENSATE PIPING
This heater is a high efficiency appliance, and therefore produces condensate: a by-product of the combustion process. A condensate
collection system with an internal float switch monitors the condensate level to prevent it from backing up into the combustion system.
There is
a ¾” socket connection provided to connect the outlet of the collection system to a drain or condensate pump.
CONDENSATE NEUTRALIZATION
Condensate from the heater is slightly acidic with a pH of 3.2 - 4.5. To avoid long term damage to the drainage system and to meet
local code requirements, HTP recommends neutralizing the condensate with a Condensate Neutralizer Kit (Part # 7450P-212 for EL-
80/110/150/220/299/301, Part # 7350P-611 for EL-399). The neutralizer kit connects to the drain system and contains limestone chips
that neutralize the pH level of the water vapor. The neutralizer kit should be checked annually and the limestone chips replenished if
necessary. When replacing the limestone chips, take care to ensure chips are
no smaller than ½” to avoid blockage in condensate
piping (refer to Figure 12 for piping of the condensate neutralizer.)