Webster Cyclonetic SG Series, Инструкция по установке, пуску, эксплуатации и обслуживанию

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Page 5 Introduction – Specifications & Sizing SG Manual
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STANDARD UL EQUIPMENT
AND IMPORTANT OPTIONS
Fuel
STANDARD UL EQUIPMENT
AND IMPORTANT OPTIONS
Fuel
Gas Gas
General
Motor, Fan and Air Inlet Control X
Gas Fuel
Main Manual Shutoff Valve X
Air Flow Switch X Main Safety Shutoff Valve X
Burner Mounted Control Panel,
Switch and Indicator Lights
X Second Safety Shutoff Valve X
Flame Safety Control X Main Gas Regulator X
Ultra Violet Scanner X Gas Checking Valve X
Motor Controller (single phase
voltage)
X
High and Low Gas Pressure
Switches
Opt.
Ignition
Direct Spark Gas Ignition X
Direct Spark Gas Ignition
Transformer
X
1. The configuration of each unit will vary with specific requirements such as input rating, electrical specification and special
agency approval codes. The above chart shows items standard to a basic burner plus a few options that may be added.
Model SG – Sizing & Application Data
(contact Webster for complete information)
Model
Number
Maximum
Furnace
Pressure
Burner Firing
Capability Range
Burner
Motor HP
Gas Train Capacity Ratings
Gas Only
HP
Pipe Size (4)
Inlet Pressure
Min. Gas
Press. Req
Stand Gas
Train Sz
Max Firing
Rate, MBH
Fan Motor
HP
Gas scfh On-Off, LFS Modulation
SG6-03 .25 400 / 1000 1/3 1” 6 / 14” 7 /14” 6” wc 1” 1,000 1/3
SG8-03 .25 600 / 1500 1/3 1 1/4” 8 / 14” 9 / 14” 8” wc 1-1/4” 1,500 1/3
SG8-05 .25 800 / 2100 1/2 1 1/2” 7 / 14” 8 / 14” 8” wc 1-1/2” 2,500 1/2
3. Larger motors may be required for single phase or 208 volts. 4. Contact Webster for complete details
.
The above maximum ratings are based on 0 furnace pressure, an altitude of 1000 feet, 90oF air temperature and 60 HZ
electrical supply. Use the following corrections for higher temperatures and altitude. Capacity decreases by 17% for 50 Hertz.
Capacity decreases by 4% for each 1000 feet above 1000 foot altitude.
Capacity decreases by 6% for each 1 inch of furnace pressure.
Capacity decreases by 2% for each 10
o
F increase in air temperature over 90
o
F.
Gas input ratings based on 1000 BTU/cu ft. and 0.64 specific gravity. Sizes and pressure will vary with gas.
Essential Ordering Information and Data:
Power Supply - Confirm 120-60-1 for control circuit and electrical supply for burner motor(s) (voltage, frequency and phase).
Describe Boiler or Heater to be Fired - Including the manufacturer, model number, furnace pressure and furnace size.
Firing Rate - Define firing rates in MBH for gas.
Flame Safety Control Preferred - Honeywell or Fireye controls.
Gas Train Components Preferred - ASCO or Honeywell
Control System - ON-OFF, Low Fire Start, Low-High-Low, Modulation
Model SG - Specification Data (400 - 2500 MBH Input)