Reznor SHH (Indoor PreevA) Unit Installation Manual - Manual (Page 5)

Form I-PDH/SDH/PEH/SHH/PXH, Page 5
Location must be in agreement with clearances in Paragraph 4.1, venting require-
ments in the appropriate venting manual, dimensions in Paragraph 4.2, weights and
structural support in Paragraph 5.1, and combustion air requirements for Model PDH
in Paragraph 6.3.
CAUTION: Do not locate the heater where it may be exposed to
water spray, rain, or dripping water.
CAUTION: When installing a unit that includes a cooling module
in a location such as an attic that can experience high dewpoint
conditions, a field-supplied drain pan should be installed under
the entire unit for water management control. High dewpoint
conditions have the potential to form condensation on the exterior
of the unit.
CAUTION - Model SHH: Model SHH heaters should not be used in
an application where the heated space temperature is below 50°F.
The combination of low space and combustion air temperatures
may result in condensate freezing in the secondary heat exchanger
and/or the condensate drain.
2.0 Location
Hazards of Chlorine - The presence of chlorine vapors in the combustion air of gas-
fired heating equipment presents a potential corrosion hazard. Chlorine found usually
in the form of freon or degreaser vapors, when exposed to flame will precipitate from
the compound, and go into solution with any condensation that is present in the heat
exchanger or associated parts. The result is hydrochloric acid which readily attacks
all metals including 300 grade stainless steel. Care should be taken to separate these
vapors from the combustion process. This may be done by wise location of the com-
bustion air terminal (Model SDH or SHH) with regard to exhausters or prevailing wind
directions. Chlorine is heavier than air. Keep these facts in mind when determining
installation location of the heater in relation to building exhaust systems.
3.0 Receiving,
Moving,
Uncrating, and
Preparing for
Installation
The Reznor ® indoor models in this manual are shipped completely assembled. The
heavy gauge base of the unit has forklift openings in both sides. ( NOTE: If system has
more than two optional modules, check for labels identifying which side to lift.) To move
a unit, use a forklift with forks that have a minimum length of 24” (610mm).
Immediately upon uncrating, check the gas specifications and/or electrical character-
istics of the unit to verify that they agree with the gas and/or electric supply at the
installation site.
Check for any damage that may have been incurred during shipment. If damage is
found, document the damage with the transporting agency and immediately contact
your Reznor ® distributor. If you are an authorized Distributor, follow the FOB freight
policy procedures as published by Reznor ® products.
All Installations - Clearances from the heater and vent to combustible construction
or material in storage must conform with the National Fuel Gas Code NFPA54/ANSI
Z223.1 (latest edition) pertaining to gas-burning devices, and such material must not
attain a temperature over 160°F by continued operation of the heater.
California Warning Label - If a unit is being installed in the state of California, the
installer MUST attach a warning label on the outside of the access door. The California
Warning label is shipped in the literature bag along with this manual, the warranty form,
and any other paperwork that applies.
Select a location on the heater access panel. Be sure the surface is clean and dry and
adhere the label.
Massachusetts Requirement - If a gas-fired heater is being installed in the Com-
monwealth of Massachusetts, it must be installed by a licensed plumber or licensed
gas fitter.