Specifications

b. When installed indoors a minimum required clearance to combustibles will not exceed
18” above the heater when oriented in a horizontal mounting position, and will not
exceed 20” above the heater when angle oriented up to 30° from horizontal mounting
position
2. Model 2150 (50,000 Btuh input):
a. When installed outdoors a minimum required clearance to combustibles for will not
exceed 16” above the heater when oriented in a horizontal mounting position, and will
not exceed 20” above the heater when angle oriented up to 30° from horizontal
mounting position
b. When installed indoors a minimum required clearance to combustibles for will not
exceed 21” above the heater when oriented in a horizontal mounting position, and will
not exceed 25” above the heater when angle oriented up to 30° from horizontal
mounting position
3.03 Energy Efficiency (Radiant Efficiency)
The heater burner will produce and emit high intensity radiant heat energy. The radiant coefficient
(radiant output in relation to heat input, corrected dry value) will not be less than 0.45 (45%
radiant heat output) for inputs up to 50,000 Btuh as tested and certified by CSA International
according to ANSI Z83.19A-2002 ~ CSA 2.35A - 2002 B and/or European Standard EN 419-2
(Test B methodology). The convection heat coefficient of the burner will not be more than 55% for
inputs up to 50,000 Btuh.
3.04 Submissions - Proof of Performance
The project submission will include written results of the radiant coefficient testing of the complete
heater as produced by CSA International or other accredited certification test facility.
If a proposed radiant heater is unable to attain the minimum 45% radiant coefficient, a proposal
submission will include:
•
Written results from a Nationally Recognized Testing Laboratory (NRTL) for certification
stipulating the radiant coefficient of the proposed heater
•
The required quantity and input rating of the proposed radiant heater to attain the
necessary radiant heat to the floor to satisfy the heating design condition of the specified
radiant heating system
•
The hourly gas consumption rate and resultant volumes of the products of combustion
C0
2
, CO and NOx of the proposed radiant heater to enable comparison to the specified
radiant heater
Part 4 — Accessories / Ancillaries
4.01 Temperature Control: Indoor Space Heating
A. GENERAL
Infrared Setback Thermostat will sense both infrared radiant temperature and ambient
temperature to realize accurate comfort control. The setback feature will automatically reduce
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
SP-EECQ-CX-01B