Installation Manual

HE+ Series Infrared Gas Heater Installation and Operation Manual

10. SEISMIC RESTRAINT GUIDELINES - LATERAL AND LONGITUDINAL

Tube must be allowed to expand and contract within the restrained hanger system. In areas prone to earth-

quake, or as specified on a project, install lateral and longitudinal seismic restraints as indicated in Figure 12. If

the heater location can be impacted by wind (outdoors, aircraft hangars, etc) refer to High Wind Restraint Sec-

tion 9.5, Figure 13.

These restraint systems indicate typical suspension of and attachment to the heater. Attachment of suspension

hardware to the structure will be as required by site structural conditions, installation codes, and/or local engi-

neering design requirements. Other material or systems of restraint may be specified by local or national codes,

or by project engineering specifications.

Rinnai offers optional items: #2 Lion Chain 115 lb work load x 200 ft roll (PN: 903000071); and Safety Snap

Hooks (PN: 903000064 = pkg 24; 903000070 = pkg 100).

• Any and all other required seismic mounting hardware is field supplied by the installer.

FIGURE 12

HIGH WIND RESTRAINT GUIDELINES - LATERAL, LONGITUDINAL, AND VERTICAL

In areas with wind conditions (outdoors, near large doors, etc) in addition to lateral and longitudinal restraint the

heater must be restrained from vertical movement. Suspend the heater using 3/8” threaded rod with 3” adjustment

turnbuckle through a safety ring at each hanger location.

FIGURE 13

Longitudinal Restraint*

40 ft Maximum Intervals

Locate Lateral Restraint

at Each End Hanger &

20 ft Maximum Intervals

* Locate minimum one longitudinal restraint to

hanger at approximate middle of tube length.

Maximum spacing of longitudinal restraint is 40 ft.