Engineering Specs

ManualsBrandsRinnai ManualsCommercial HeatingHE+ tube heater 1-Stage: 155k 40 Ft NG

the set operating temperature by 9F° (5C°) when area lighting level is reduced due to an

unoccupied condition.

a. The thermostat will be comprised of a metal dome that will attach to a mounting plate

using two metal screws. All control circuitry and comfort temperature selection controls

will be mounted inside of the metal dome enclosure to protect the circuitry and provide

resistance to tampering with temperature settings.

i. Optionally tamper proof screws for mounting of the metal dome to the mounting

plate will limit access to thermostat settings to authorized personnel with access

to the special tool required to manipulate the screws

b. The thermostat will sense both infrared and ambient temperature and average the two to

maintain the comfort temperature setting within the heat zone

c. The thermostat will incorporate automatic temperature setback of 9F° (5C°) during an

unoccupied condition. A photoconductive cell will be used to sense occupancy within the

heater zone by sensing illumination. Resumption of the occupied state illumination level

will return thermostat temperature control to full comfort setting. A switching mechanism

will allow calibration of the photoconductive cell to the base illumination level for occupied

status. A switching mechanism within the thermostat will allow for disabling of the

temperature setback feature.

d. The thermostat mounting plate will attach to a standard 4” x 4” octagonal electrical box.

e. Electrical rating: 24 Vac, 60Hz

4.02 Other Heater Ancillaries

A. Gas Connection

i. USA: Each heater will be connected to the gas supply piping using a CSA International

certified stainless steel flexible gas connector sized according to heater input and as

supplied by the manufacturer of the heater.

ii. Canada: Each heater will be connected to the gas supply piping using a CSA

International certified Type-1 Hose gas connector sized according to heater input and

as supplied by the manufacturer of the heater.

B. Combustion Air intake:

When located in an area with a negative air condition or a dust laden environment the

heater will be fitted with a 4 inch (100 mm) or 5 inch (127 mm) diameter duct as described

in the Installation and Owner’s Manual. The duct termination will be fitted with an optional

cap as supplied by the manufacturer

C. Modular 90° Elbow Kit:

To enable a 90° bend in the tube system, the heater will be fitted with a 90° elbow kit

complete with aluminized steel elbow, wire hanger, tube coupler, and aluminized steel

reflector cap as supplied by the manufacturer. The elbow kit will be modular in design to

enable a 180° bend in the system by installation of two adjoining 90° elbow kits. Elbow kit

will be installed in the system as per the Installation and Owner’s Manual provided by the

manufacturer, noting in particular minimum length location from the burner.

D. Reflector Extension

To prevent impingement of infrared heat on nearby surface(s) the heater will be fitted with a

reflector extension as supplied by the manufacturer of the heater. The reflector extension

will be installed on the heater(s) as per the manufacturer’s instruction and as indicated on

the drawings.

under license by Rinnai America Corporation. Rinnai America Corporation continually updates materials,

and as such, content is subject to change without notice.

900000038

3/2021