PH
-SERIES
9
6.0
INSTALLATION CLEARANCES AND CLEARANCE TO COMBUSTIBLES
Installation of overhead heaters in garages or hangars MUST meet the requirements for bottom (below)
clearances detailed in
CANADA:
Natural Gas and Propane Installation Code, CSA B149.1
or latest edition or
USA:
National Fuel Gas Code, ANSI Z223.1/NFPA 54
, or latest edition.
Minimum mounting height from ground or floor to bottom portion of tube is 78" (199 cm)
WARNING:
I
n all situations, clearances to combustibles must be maintained. Minimum clearance
from heater must be maintained from vehicles parked below heater. The posting of signs may be
required in storage areas referring to clearances to combustibles to the heater and/or limiting the
stacking height of stored Items near the heater specifying a maximum height. Clearances are not for
use in four (4) sided enclosures. Certain materials or items, when stored under the heater, will be
subjected to radiant heat and could be seriously damaged.
WARNING
:
For Models PH-40, 50, 75, 80, 100, and 125 when used indoors and vented accordingly,
the stated clearance to combustibles represents a surface temperature of 90°F (32°C) above room
temperature. Building material with low heat tolerance may be subject to degradation at lower
temperatures. It is the installer's responsibility to assure that adjacent material with a low heat
tolerance which may degrade at lower temperatures are protected to prevent degradation
END CLEARANCES
(BURNER HEAD END)
Minimum clearances from air intake end of burner head to object is 5" (12.7 cm).
Provide adequate accessibility clearances for servicing and proper operation. Do not install unit in such a
manner that the combustion air entering the heater is reduced in any manner
OUTDOOR APPLICATIONS ONLY
(EXHAUST END)
ALL MODELS
OUTDOOR
APPLICATIONS
ONLY
Figure 3. OUTDOOR END CLEARANCES
(EXHAUST END)
PH-40, 50, &
75 Only
VENTED
APPLICATIONS
ONLY
Figure 4. VENTED CLEARANCES
