Installation Guide

©2019 Hestan Commercial Corporation
9
EN
Installation of this cooking appliance must be made in accordance with local codes. In the absence of
local codes, this unit should be installed in accordance with the National Fuel Gas Code No.
Z223.1/
NFPA 54
, Natural Gas and Propane Installation code CSA B149-1 , or Propane Storage and Handling
Code B149.2.
NOTE: See rating label for manifold pressure for the type of gas of your appliance.
CONNECTING THE GAS
Some rangetop units may have the regulator mounted
internally as seen in Figure A. There is a short flex hose
which extends below the rear of the rangetop. This
short flex hose has a connection end with 1/2”NPT
internal thread AND 3/4”NPT external threads. The
installer must connect a gas supply hose at this location.
Other units have the regulator located externally with
a short flex hose at the rear of the rangetop as shown
in Figure B. The regulator is shipped loose in the
accessory box with other items. The regulator must
be connected to the provided short flex hose by the installer, and
then the gas supply hose to the inlet side of the regulator. Make a
note of the flow arrow embossed on the regulator itself. The arrow
points toward the range. The gas inlet of the regulator is 1/2”NPT
thread.
Connect to the gas supply using a mininum 3/4” inside diameter
(1”OD) flexible (semi-rigid) stainless steel gas hose (not included)
with appropriate fittings to prevent gas starvation. This
hose should be no more that 36” [91.4 cm] in length. Use the
appropriate thread sealant on all connections, except flare fittings.
The supply line must not interfere with the rear of the rangetop.
Use caution when pushing the rangetop against the back wall, so
that you do not kink or crimp the flex hose as this could result in a
gas leak.
CONVERSION KITS
In the event your Hestan appliance needs to be converted from
NG to LP, or vice-versa, you will need to contact Hestan Customer
Service to arrange a service call. This conversion should only be
performed by a qualified technician.
HIGH ALTITUDE KITS
If you live in a high altitude area, 2,000 ft. [610 m] or more above sea level, your appliance may
require different orifices for proper combustion and performance. You will need to contact Hestan
Customer Service to arrange a service call. High Altitude kits must be installed by a qualified
technician. Please have your model and serial number information ready when you call.
1/2”NPT
INTERNAL THREAD
FIGURE A: INTERNAL REGULATOR
3/4”NPT
EXTERNAL THREAD
1/2” NPT THREAD
FIGURE B: EXTERNAL REGULATOR
GAS CONNECTION (CONTINUED)