Roberts Gorden CTHN-125 Manual De Usuario

7

The type of gas appearing on the nameplate 
must be the type of gas used. Installation must 
comply with national and local codes and 
requirements of the local gas company.

United States: Refer to National Fuel Gas Code, 
ANSI Z223.1 - latest revision (same as NFPA 
54).

Canada: Refer to CAN/CGA B149.1 and B149.2: 
Installation Codes for Gas Burning Appliances.

Installation in aircraft hangars must be in 
accordance with the following codes:

United States: Refer to Standard for Aircraft 
Hangars, ANSI/NFPA-409 - latest revision.

Canada: Refer to Standard CAN/CGA B149.1 
and B149.2: Installation Codes for Gas Burning 
Appliances.

• In aircraft storage and servicing areas, heaters 
shall be installed at least 10' (3 m) above the 
upper surface of wings or of engine enclosures 
of the highest aircraft which may be housed in 
the hangar. The measurement shall be made 
from the wing or engine enclosure (whichever is 
higher from the floor) to the bottom of the heater.
• In shops, offices and other sections of aircraft 
hangars communicating with aircraft storage or 
servicing areas, heaters shall be installed not 
less than 8' (2.4 m) above the floor.
• Suspended or elevated heaters shall be so 
located in all spaces of aircraft hangars that they 
shall not be subject to injury by aircraft, cranes, 
movable scaffolding or other objects. Provisions 
shall be made to assure accessibility to 
suspended heaters for recurrent maintenance 
purposes.

Installation in garages must be in accordance 
with the following codes:

United States: Standard for Parking Structures 
NFPA-88A - latest revision or the Code for Motor 
Fuel Dispensing Facilities and Repair Garages, 
NFPA-30A - latest revision. Canada: Refer to 
CAN/CGA B149.1 and B149.2: Installation 
Codes for Gas Burning Appliances.

• Heaters must not be installed less than 8' 
(2.4 m) above the floor. Minimum clearances to 
combustibles must be maintained from vehicles 
parked below the heater.
• When installed over hoists, minimum 
clearances to combustibles must be maintained 
from the upper most point of objects on the hoist.

The heater must be electrically grounded in 
accordance with the following codes:

United States: Refer to National Electrical 
Code

®

, ANSI/NFPA-70 - latest revision. Wiring 

must conform to the most current National 
Electrical Code

®

, local ordinances, and any 

special diagrams furnished.

Canada: Refer to Canadian Electrical Code, 
CSA C22.1 Part 1 - latest revision.

The venting must be installed in accordance with 
the requirements within this manual and the 
following codes:

United States: Refer to NFPA-54/ANSI Z223.1 - 
latest revision, National Fuel Gas Code. 

Canada: Refer to CAN/CGA B149.1 and B149.2: 
Installation Codes for Gas Burning Appliances.

These heaters are approved for installations up 
to 2000' (610 m)(US), 4500' (1370 m)(Canada) 
without modification. Consult factory if US 
installation is above 2000' (610 m) or Canadian 
installation is above 4500' (1370 m).