| Standard Equipment General:
Horizontal unit with choice of HR-1 or HR-2 blower
discharge
Housing:
Heavy gauge aluminized steel, printed outside, heat
resistant enamel finish-inside and outside; four lifting lugs.
Burner:
Direct-fired line burner with spark ignited intermittent
pilot for natural gas at inlet pressure from 4 oz. to 1 PSIG. Up to 25:1 turndown ratio.
Blowers:
Centrifugal DWDI forward curved fan(s) with one piece thru
shaft and self-aligning, 200,000 hour greaseable Pillowblock ball bearings. Wheels are
statically and dynamically balanced.Adjustable drives thru 10 HP.
Energy Efficient Motors:
T-frame, ODP prelubricated ball bearing type for all
standard voltages.
Base Controls- Factory wired and
flame tested:
- Main gas hand shut-off value.
- Main and pilot gas pressure regulators
- Pilot controls.
- Motorized electric safety shut-off value.
- Self-contained gas modulating valve (under 500 MBH)
- Maxitrol Series 14 (over 500 MBH).
- Motor Starter.
- Control transformer
- High temperature limit switch.
- Air flow switch.
- Automatic mild weather burner lockout.
- ignition transformer.
- Electronic flame safeguard system
- NEMA 1 control box.
- Remote control station with switches and indicating lights.
Options and Accessories
Components:
- Unit weatherproofing including weatherproof service
enclosure.
- Inlet or discharge shut-off dampers with motor and end
switch (discharge damper recommended for outdoor units).
- Weatherhood with rainshield and intake birdscreen.
- Filter section with throwaway, extended surface or cleanable
filters.
- Discharge louvers; horizontal, vertical or both for double
deflection
- Vibration Isolators.
- Roof curb & curb adapter[ frame (for use with
weatherproof unit).
Burners :
Propane or propane standby.
Gas and Electrical Controls
- FM or IRI approved controls.
- ETL approval
- High gas pressure regulator - 1 to 60 PSIG.
- Ultra violet flame sensor
- Low outlet temperature shut-off.
- Blocked intake switch and light.
- Fused disconnect switch.
- Circuit analyzer with lights.
- 2 position over-riding room thermostat for Maxitrol Series
14.
- Maxitrol Series 44. Included discharge air monitor and field
mounted space temperature selector and sensor.
- A-200 signal conditioner to accept a 4-20 MA or 0-10VDC
signal for gas value modulation (Series 14 and Series 44 only)
- Vertical unit blower arrangements with 24" support
legs.
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