Honeywell AUTOMATIC CONTROL User Manual

ENGINEERING MANUAL OF AUTOMATIC CONTROL
GENERAL ENGINEERING DATA
480
POWER
Table 15. Power Conversion Multipliers.
EXAMPLE:
15,000 Btuh x 0.0002929 = 4.3935 kW
WORK/ENERGY
Table 16. Work/Energy Conversion Multipliers. Energy/Work Conversion Multipliers
EXAMPLE:
45 Btu x 252 = 11,340 calories
Desired Unit
Existing Unit
British
Thermal
Unit/Hour
(Btuh)
British
Thermal
Unit/ Minute
(Btu/min)
Foot
Pounds/
Minute
(ft-lb/min)
Foot
Pounds/
Second
(ft-lb/s)
Horse-
power
(hp)
Boiler
Horse-
power
(hp boiler)
Tons of
Refrig-
eration
Kilo-watts
(kW)
British Thermal
Unit/Hour (btuh)
— 0.01667 12.96 0.2162 0.00039 0.0000298 0.000083 0.0002929
British Thermal
Unit/Minute
(Btu/min)
60 — 776.2 12.96 0.02356 0.00179 0.005 0.01757
Foot
Pounds/Minute
(ft-lb/min)
0.07716 0.001286 — 0.01667 0.00003 0.0000023 0.0000064 0.0000226
Foot
Pounds/Second
(ft-lb/s)
4.626 0.0771 60 — 0.00182 0.000138 0.000386 0.00136
Horsepower (hp) 2546.4 42.44 33 000 550 — 0.07605 0.2121 0.7457
Boiler
Horsepower
(hp boiler)
33520 558.7 433 880 7231 13.15 — 2.793 9.803
Tons of
Refrigeration
12000 200.0 155 640 2594 4.715 0.358 — 3.516
Kilowatts (kW) 3414.2 56.92 44 260 737.6 1.341 0.1020 0.2844 —
Desired Unit
Existing Unit
British Thermal
Unit
(Btuh) (15.6C)
Watt-hour
(Wh)
Kilowatt-hour
(kWh)
Calorie
(Cal)
Foot-pound
(ft-lb)
a
Joule (J)
British Thermal Unit
(Btuh) (15.6C)
— 0.2931 0.0002931 252 778.2 1055
Watt-hour (Wh) 3.412 — 0.001 860 2656 3600
Kilowatt-hour (kWh) 3412 1000 — 860 000 2 656 000 3 600 000
Calorie (Cal) 0.00397 0.001163 0.0000012 — 3.085 4.184
Foot-pound (ft-lb)
a
0.001286 0.0003765 0.00000038 0.3241 — 1.353
Joule (J) 0.0009479 0.0002778 0.0000003 0.2390 0.7393 —
Therm = a quantity of gas containing 100 000 Btu.
a
A foot-pound (ft-lb) is the I-P unit of work or mechanical energy which has the potential to do work. One ft-lb is the work
required to raise a weight of one pound one foot or the potential energy possessed by that weight after being raised in
reference to its former position. See TORQUE for pound-foot.

Honeywell AUTOMATIC CONTROL Specifications

General

Brand	Honeywell
Model	AUTOMATIC CONTROL
Category	Controller
Language	English