User Guide
Table Of Contents
- ELECTRIC HEATER COMPANY
- WARNING / CAUTION
- TABLE OF CONTENTS
- GENERAL DESCRIPTION
- CONSTRUCTION
- OPTIONS
- Low Water Cut-Off
- Dial Temperature and Pressure Gauge
- Vacuum Relief Valve
- A vacuum relief valve may be provided with the unit to reduce the risk of back siphonage and back pressure of the system. The valve will be shipped loose for in-line installation. Instructions for installation are provided with the valve.
- Electro-Mechanical Timer
- An electro-mechanical 7-day time clock with battery back-up may be supplied for specific timing operations. A set of instructions will be supplied with the timer.
- FINAL CHECKS
- CONSTRUCTION
- GENERAL DESCRIPTION
- Symptom
23
SECTION VI – MISCELLANEOUS CHARTS AND FORMULAS
ELEMENT CHART
Power (Watts)
Element Part #
120V 208V 240V 277V 480V
Immersion
Length
Element
Resistance (Ohms)
CH-FO-358 ---- 3500 ---- ---- ---- 11 3/8" 12.36
CH-FO-408 ---- 4000 ---- ---- ---- 11 3/8" 10.82
CH-FO-508 ---- 5000 ---- ---- ---- 13 1/4" 8.65
CH-FO-608 2000 6000 ---- ---- ---- 13 3/8" 7.21
CH-FO-304 ---- ---- 3000 4000 ---- 9 3/4" 19.20
CH-FO-354 ---- 2500 3500 ---- ---- 9 3/4" 16.46
CH-FO-404 ---- 3000 4000 ---- ---- 11 1/2" 14.40
CH-FO-454 ---- ---- 4500 ---- ---- 11 1/2" 12.80
CH-FO-504 ---- ---- 5000 ---- ---- 11 1/2" 11.52
CH-FO-604 1500 4500 6000 ---- ---- 13 1/2" 9.60
TGB-1203-480 ---- ---- ---- ---- 2000 7 5/8" 83.23
TGB-1353-480 ---- 500 ---- 1000 3500 12 1/2" 47.56
TGB-2257L 2500 ---- ---- ---- ---- 9 5/8" 5.76
TGB-1207-240 500 1500 2000 2500 ---- 13 3/8" 28.80
TGB-1303-480 ---- ---- 990 3000 10 1/2" 55.49
TGB-1403-480 ---- ---- 1000 1350 4000 13 5/8" 41.62
TGB-2257-240 ---- 2000 2500 3500 ---- 10 5/8" 23.04
TGB-2257-480 ---- ---- ---- ---- 2500 13 1/4" 66.59
TGB-2457-277 ---- ---- ---- 4500 ---- 13 1/8" 17.05
TGB-2457-480 ---- ---- ---- 1500 4500 13 1/4" 36.99
TGB-2503-480 ---- 1000 ---- ---- 5000 9 3/4" 33.29
TGB-2507-277 ---- ---- ---- 5000 ---- 15" 15.35
TGB-2603-277 ---- ---- ---- 6000 ---- 15 1/2" 12.79
TGB-2603-480 ---- ---- 1500 2000 6000 15 1/2" 27.74
*Red wattage indicates the stamped element rating