HTP 199-55SA - Manual (Page 8)

8
LP-179 REV. 3.21.14
Lower Return Tank Sensor
This sensor monitors the lower portion of the water heater inlet water temperature (system return). The control module reduces or
increases input, depending on how close the water temperature is to the outlet water temperature set point.
Control
The integrated control system monitors upper and lower water temperature
and regulates fan speed to regulate the unit’s energy
output. This allows the unit to deliver the required amount of heated energy and nothing more.
Burner
Constructed of high grade stainless steel, the burner uses pre-mixed air and gas and provides a wide range of firing rates.
Condensate Drain Connection
This is a condensing high efficiency water heater, and therefore has a condensate removal system. Condensate is nothing more than
water vapor, derived from combustion products and similar to an automobile when it is initially started. It is very important that the
condensate line slopes away from the water heater and down to a suitable inside drain.
If the condensate outlet on the heater is lower than the drain, you must use a condensate removal pump (kit p/n 554200 available from
HTP.) In addition, local authorities may require a condensate neutralizer to neutralize the condensate. Condensate neutralizers are
made up of lime crystals, marble or phosphate chips. Neutralizers can be installed in the field by the installer and purchased from HTP
(p/n 7450P-212).
It is also very important not to expose the condensate line to freezing temperatures or any type of blockage. Plastic tubing must be the
only material used for the condensate line. Steel, brass, copper or other materials will be subject to corrosion or deterioration. A second
vent may be necessary to prevent condensate line vacuum lock on a long horizontal run. Also, an increase in pipe size may be
necessary to allow condensate to drain properly. Support of the condensation line may be necessary to avoid blockage of the
condensate flow.
Spark Ignition
The burner flame is ignited by applying high voltage to the system spark electrode. This causes a spark from electrode to ground.
C. OPTIONAL EQUIPMENT
Below is a list of optional equipment available from HTP:
 3” Stainless Steel Outside Termination Vent Kit (V1000)
 4” Stainless Steel Outside Termination Vent Kit (V2000)
 2” PVC Concentric Vent Kit (Part # KGAVT0501CVT)

3" PVC Concentric Vent Kit (Part # KGAVT0601CVT)
 3” Polypro Vent Kit (Part # 8400P-001)
 3” Polypro Pipe (33’ length Part # 8400P-002, 49.5’ length Part # 8400P-003)

PC Connection Kit (Part # 7250P-320)

Condensate Neutralizer (Part # 7450P-212)

Outdoor Sensor (Part # 7250P-319)

Sanitizer Booster Kit (Part # VSBK-1200)
PART 3 – PREPARE WATER HEATER LOCATION
Carefully consider installation when determining heater location. Please read the entire manual before attempting installation. Failure to
properly take factors such as heater venting, piping, condensate removal, and wiring into account before installation could result in
wasted time, money, and possible property damage and personal injury.