HTP EFT-399 - Manual (Page 11)

11
LP-387 REV. 6.10.14
Pump Service Mode – Allows manual operation of pumps to commission system and check pump operation.
The Vision II System (Optional)
– Allows the user to supply mixed temperatures in up to eight zones. The Vision II system controls the
temperature to each zone by employing three way mixing valves. The Vision II also controls the output temperature of the boiler to
assure accurate temperature delivery to all connected zones.
C. OPTIONAL EQUIPMENT
Below is a list of optional equipment available from HTP. These additional options may be purchased through your HTP distributor:

System Sensor (Part # 7250P-324)

Indirect Tank Sensor (Part # 7250P-325)

3" PVC Concentric Vent Kit (Part # KGAVT0601CVT)
 3” Stainless Steel Outside Termination Vent Kit (Part # V1000)
 4” Stainless Steel Outside Termination Vent Kit (Part # V2000)
 6” Stainless Steel Outside Termination Vent Kit (Part # V3000)
 3” Polypro Vent Kit (Part # 8400P-001)
 3” Polypro Pipe (33’ length Part # 8400P-002, 49.5’ length Part # 8400P-003)

U.L. 353 Compliant Low Water Cut-Off Interface Kit with Manual Reset (Part # 7600P-104 for EFT-55/80/110, #7600P-990 for
all other models)

Manual Reset High Limit (Part # 7450P-217)

Alarm System (Part # 7350P-602) (to monitor any failure)

PC Connection Kit (Part # 7250P-320)

Condensate Neutralizer (Part # 7450P-212)

Condensate Removal Pump (Part # 554200)

Flow Switch Kit (Part # 7450P-213)

Vision II (Part # 7250P-322)
NOTE: When using an optional system sensor, pipe insulation must be wrapped around it to improve temperature measurement
accuracy and increase overall system efficiency.
PART 3 – PREPARE BOILER LOCATION
Carefully consider installation when determining boiler location. Please read the entire manual before attempting installation. Failure to
properly take factors such as boiler venting, piping, condensate removal, and wiring into account before installation could result in
wasted time, money, and possible property damage and personal injury.
A. BEFORE LOCATING THE BOILER
Incorrect ambient conditions can lead to damage to the heating system and put safe operation at risk. Ensure that the boiler installation
location adheres to the information included in this manual. Failure to do so could result in property damage, serious personal injury, or
death.
Failure of boiler or components due to incorrect operating conditions IS NOT covered by product warranty.
1. Installation Area (Mechanical Room) Operating Conditions

Ensure ambient temperatures are higher than 32
o
F/0
o
C and lower than 104
o
F/40
o
C.

Prevent the air from becoming contaminated by the products, places, and conditions listed in this manual, Part 3, Section F.

Avoid continuously high levels of humidity

Never close existing ventilation openings
The service life of the boiler’s exposed metallic surfaces, such as the casing, as well as internal surfaces, such as the heat exchanger,
are directly influenced by proximity to damp and salty marine environments. In such areas, higher concentration levels of chlorides from
sea spray coupled with relative humidity can lead to degradation of the heat exchanger and other boiler components. In these
environments, boilers must not be installed using direct vent systems which draw outdoor air for combustion. Such boilers must be
installed using room air for combustion. Indoor air will have a much lower relative humidity and, hence, potential corrosion will be
minimized.