Rev. D 27-06-11
P/N 474131
17
INDOOR VENTING — General Requirements
If you are considering connecting this heater to a pre-existing vent system, make sure that the vent system meets the
appropriate venting requirements as given in this manual on
pages 17-25
. If not, replace the vent system.
DO NOT
use a draft hood with this heater. The MasterTemp heaters are capable of a 270-degree discharge rotation and with a
vent gas temperature less than 204° C (400° F). The total length of the horizontal run must not exceed the length that is
listed in
Table 7
on
page 21
.
HEATER CLEARANCES — General Requirements
INDOOR INSTALLATION AND OUTDOOR SHELTER
The following clearances must be maintained from the nearest walls:
TOP .............................. 15 cm. (6 in)
EXHAUST SIDE ......... 15 cm (6 in.)
HEADER SIDE ........... 15 cm (6 in.)
DOOR PANELS* ........ 15 cm (6 in.)
Note
(*) For service access it is advisable to allow for sufficient clearance on at least one door panel. The heater is
designed for installation on combustible flooring. For installation on carpeting, the heater must be mounted on a metal or
wood panel that extends at least three inches (10cm) beyond the base of the heater. If the heater is installed in a closet or
alcove, the entire floor shall be covered by the panel. On an outdoor shelter installation, the exhaust discharges into a vent
pipe. Orient the heater so that the vent pipe does not interfere with adjustment of the operating controls. The control panel
located on the top panel can be rotated to any of the three sides of the heater for easy access. However, the control panel
must not be located on the side where the vent is located.
OUTSIDE VENT COVER REMOVAL
The heater is supplied from the factory with a built-in stackless outside vent for outdoor installation. Remove the outside
vent cover for outdoor shelter installation.
Section 3. Installation
(*)
For service access, it is advisable to allow for
sufficient clearance on at least one door panel.
15 cm
(6 in)
15 cm
(6 in)
15 cm
(6 in)
15 cm*
(6 in)
*
Figure 12
Figure 12a
NOTE: REMOVE OR COVER “OUTDOOR ONLY” LABEL LOCATED ON HEATER OUTSIDE PANEL WITH “INDOOR
INSTALLATION” LABEL (P/N 474275) INCLUDED IN ACCESSORY BAG (P/N 473607).
(SEE INSTALLATION GUIDE FOR CORRECT PLACEMENT OF THIS LABEL)
P/N 474275
INDOOR INSTALLATION
Outlet Air
Opening
Inlet Air
Opening
Chimney or Gas Vent
Vent Cap and
Riser Furnished
by Installer
Side
Wall Vent
Heater
15 cm (6 in)