User Manual

30
6-189.14
SPECIFICATIONS - ALL MODELS
A. Standards
All unit(s) shall include:
A.1. ETL design certification for use in both the US and Canada to
the ANSI Z83.8 - latest revision, standard for “Gas Unit Heater
and Gas-Fired Duct Furnaces” for safe operation, construction,
and performance.
B. Mechanical Configuration
B.1. Furnace(s) section with 82% minimum efficiency provided by
an indirect-fired heat exchanger with dimpled tube pattern for
efficient heat transfer. (PDP/BDP models)
B.2. Furnace(s) section with 82% minimum efficiency provided by an
indirect-fired tubular heat exchanger with individually fired tubes
for maximum heat transfer with minimal noise of flame ignition/
extinction. (HD/HDB/PTP models)
C. Venting Arrangement
C.2. The venting shall be a power exhausted arrangement. The unit
shall be tested to insure proper ignition when the unit is
subjected to 40 mile per hour wind velocities. The unit shall also
include a factory mounted differential pressure switch designed
to prevent main burner ignition until positive venting has been
proven.
D. Unit Casing
D.1. The unit heater(s) casing shall be constructed of not less than
20 gauge aluminized steel with minimization of exposed
fasteners. (PDP/BDP/PTP models)
D.1.a. The unit heater(s) casing shall be constructed of not less than
22 gauge aluminized steel with minimization of exposed
fasteners. (HD/HDB models)
D.2. All exterior casing parts shall be cleaned of all oils and a
phosphate coating applied prior to painting. The exterior casing
parts shall then be painted with an electrostatically applied
baked-on gray-green polyester powder paint (7-mil thickness) for
corrosion resistance.
D.3. The unit shall be furnished with horizontal air deflectors. The
deflectors are adjustable to provide for horizontal directional
airflow control (up or down).
E. Furnace Section
E.1. The heat exchanger(s) shall be made of 20 gauge aluminized
steel tubes and headers (opt 409 stainless steel). (PDP/BDP
models)
The thermal efficiency of the unit(s) shall be a minimum of 82%
efficient for all air flow ranges.
Each heat exchanger tube shall be individually and directly
flame-fired. The heat exchanger tube shall be contoured and
dimpled to provide efficient heat transfer and crimped to allow for
thermal expansion and contraction. The flue collector box shall
be made of 20 gauge aluminized steel.
E.1.a. The heat exchanger(s) shall be made of 18 gauge aluminized
steel (opt 409 stainless steel). (HD/HDB/PTP models)
The thermal efficiency of the unit(s) shall be a minimum of 82%
for all air flow ranges.
Each heat exchanger tube shall be individually and directly
flame-fired. Each heat exchanger tube shall be individually and
directly flame-fired. The heat exchanger tube shall be crimped to
allow for thermal expansion and contraction. The flue collector
box shall be made of 20 gauge aluminized steel.
E.2. The heat exchanger(s) seams and duct connections shall be
certified to withstand 0.9" W.C. external static pressure without
burner flame disturbance. (HD/HDB/PTP models)
E.2.a. The heat exchanger(s) seams and duct connections shall be
certified to withstand 0.5" W.C. external static pressure without
burner flame disturbance. (PDP/BDP models)
E.3. The burner(s) shall be made of the same material as the heat
exchanger with a thickness of not less than 28 gauge. Burner(s)
shall have non-clogging, slotted ports with a stainless steel
separator strip designed for good lighting characteristics without
noise of extinction for both natural and propane gas.
(PDP/BDP models)
E.3.a. The burner(s) shall be in-shot type, directly firing each heat
exchanger individually and is (are) designed for good lighting
characteristics without noise of extinction for both natural and
propane gas. (HD/HDB/PTP models)
E.4. The orifices shall be provided on propane gas with adjustable air
shutters for controlling the primary air mixture. (PDP/BDP models)
E.5. The ignition controller(s) shall be 100% shut-off with continuous
retry.
E.6. The gas pressure shall be between 6-7" W.C for natural gas.
(opt) The gas pressure shall be 11-14" W.C. for propane gas.
E.7. The solid state ignition system shall intermittently light the pilot
each time the system is energized. Once the pilot is proven, the
main gas valve shall open and allow gas flow to the main burner.
(PDP/BDP models)
E.7.a. The solid state ignition system shall directly light the gas by
means of a direct spark igniter each time the system is
energized (HD/HDB/PTP models).
E.8. The unit gas controls shall be provided with the following:
E.8.d. (opt) Single-stage gas controls with a single-stage combination
gas control, an ignition control, and a single-stage low voltage
thermostat. The unit fires at 100% full fire based on a call for
heat from a room thermostat.
E.8.e. (opt) Two-stage gas controls with a two-stage combination gas
control, an ignition control, and a two-stage low voltage
thermostat. The unit fires at 50% fire on low stage or 100% fire
on high stage of the unit based on the call for heat from either a
room or duct thermostat.
E.9. An automatic reset high limit switch mounted in the air stream to
shut off the gas supply in the event of overheating.
E.10. A time delay relay that delays the start of the air mover to allow
the heat exchanger a warm-up period after a call for heat. The
time delay relay shall also continue the air mover operation after
the thermostat has been satisfied to remove any residual heat in
the heat exchanger.
E.11. The unit shall be orificed for up to 2000' elevation above sea
level. (opt) The unit shall be orificed for _____ elevation above
sea level.
F. Electrical
F.1. All electrical components shall carry UL, ETL, or CSA listing.
F.2. A low voltage terminal board shall be provided for direct wiring
connection to an external thermostat.
F.3. A single step down transformer shall be provided for all unit
controls.
General