Installation Instructions
7
INSTALLATION
GENERAL
1. Follow all local codes, or in the absence of local codes, follow the current edition of the National
Fuel Gas Code: ANSI Z223.1/NFPA 54 in the USA or B149.1 Natural Gas, Propane Installation
Code in Canada.
2. All gas micro boilers require careful and correct installation to ensure safe and efcient operation.
This manual must be followed exactly. Read the “Safety Guidelines” section.
3. The manifold gas pressure is preset at the factory. It is computer controlled and should not need
adjustment.
4. Maintain proper space for servicing. Install the unit so that it can be connected or removed easily.
Refer to the “Clearances” section for proper clearance.
5. The micro boiler must be installed in a location where the proper amount of combustible air will be
available to it at all times without obstructions.
6. The electrical connections requires a means of disconnections, to terminate power to the micro
boiler for servicing and safety purposes.
7. Do not install the unit where the exhaust vent is pointing into any opening in the building or where
the noise may disturb your neighbors. Make sure the vent termination meets the required distance
by local code from any doorway or opening to prevent exhaust from entering a building.
8. Particles from our, aerosols, and other contaminants may clog the air vent, build up and reduce
the functions of the rotating fan, cause improper burning of the gas, or cause damage to the micro
boiler. Regularly ensure that the area around the unit is dust or debris free. Regular maintenance
is recommended for these types of environment.
9. The Hydro Smart 199 condensing gas boiler is to be installed indoors only. This unit is equipped
with thermistors and a hi-limit switch for the exhaust gas, detecting excess temperatures within
the ue and enabling the unit to safely stop operations. These components are always monitoring
exhaust gas conditions in order to prevent heat damage to ABS, PVC, CPVC, or polypropylene
(Plastic) venting if ABS, PVC, CPVC, or polypropylene is used. If the exhaust gas temperatures
exceeds 140° F, these components will enable the unit to safely stop operations.
• The micro-boiler requires 3” or 4” make-up intake air supply pipe. The intake pipe must be sealed
airtight.
• Air supply pipe can be made of ABS. PVC (solid core), CPVC (solid core), polypropylene, corru-
gated stainless steel, or Category III/IV stainless steel. Regarding exhaust pipe refer to the “Ex-
haust section” under venting instructions.
• Sidewall venting is recommend for this boiler. Vertical venting (roof termination) is acceptable.
• The manufacturer recommends running the exhaust vent and the intake pipe as parallel as possi-
ble.