Coleman-Mach’s Heat Ready Zone Control Box is for use with heat pumps. It can control more than one RV heat pump at a time and is compatible with 9-Series Zone Control Digital Thermostats: 9330A3341 and 9330A3351. The Zone Control Box is compatible with 4500, 4700 and 4800 Coleman-Mach Heat Pumps. It was also designed to be used with heat ready Mach series air conditioners (heat strips sold separately). Use Heat Strip 47233-4551 for the 4700 Heat Pump and Heat Strip 9233A4551 for all other Heat Pumps. The dimensions of the control box are 13-7/8″ L x 4-3/8″ W x 2-1/8″ H.








