Bradford BALBOA M3, Installation & Operation Manual

Page: 39 / 50

Residential Spa
pg. 39
File: RES_Hottub_manual_021116
Appendix A
The following table lists the requirements for one and two pump systems with gas/propane heaters.
Table 6 : Electrical requirements for gas/propane heaters
Configuration: Requirements
BRD 1G
one pump system with
gas heater
• 240 volt 2 hp two-speed pump
•
150,000 Btu natural or propane gas heater
Requirement:
•
20 amp service – 240 volt, four wire (two hots, neutral,ground)
to control circuit.
• 15 amp service – 120 volt, three wire (two hots, ground)
to gas heater
BRD 2G
Two pump system with
gas heater
• 240 volt 2 hp single-speed pump
• 240 volt 2 hp two-speed pump
•
150,000 Btu natural or propane gas heater
Requirement:
• 30 amp service - 240 volt, four wire (two hots, neutral, ground)
to control circuit
• 15 amp service - 240 volt, three wire (two hots, ground)
to gas heater