Application Brochure

© 2013 654_A - 06/13 12 of 16
Multi-Zone Car Wash A654-6 Mechanical
Description
A car wash can have up to 12 bays and aprons each having an ice melting system operated by a Snow Melting Control 654. A
boiler or water heater heats a storage tank which is used for hot water to wash vehicles and heat the ice melting system. The
control uses a Slab Sensor 072 or 073 to measure the slab temperature and operates the zone to ensure the slab is above
freezing. A programmable schedule is used to operate the ice melting system during the car wash business hours and shuts
off the system when the car wash is closed.
Zone 1 - Application Settings
Setting Name Value
APP MODE PWM
BOIL TYPE OFF
AUX RELAY SYS (system pump)
OUT/BRET OUT
Slab
Sensor
072
Outdoor
Sensor
070
Freeze
Protection
Aquastat
Zone 2
Pump
Boiler
System
Pump
Slab
Sensor
072
Zone 1
Pump
Wiring
Center
316
Zone 1
Zone 2
654
654
Recommended Accessories
Qty Part Name Part Number
1 Wiring Center 316
Zone 2 - Application Settings
Setting Name Value
APP MODE PWM
BOIL TYPE OFF
AUX RELAY SYS (system pump)
OUT/BRET OFF