Also if the temperature is between 110☏ and 175☏ then 110 will be displayed. ![]() If the temperature is between -40☏ and 41☏ then 41 will be displayed as the room temperature.The thermostat is designed to display temperatures from 41☏ to 110☏ however it will operate from -40☏ to +175☏.If the word Set is not shown, then the temperature shown is the actual room temperature in the displayed zone. If the word Set is shown, then the setpoint or desired temperature is shown.Also, the LCD displays the room temperature and setpoint temperature in the displayed zone.These will range from Cool Auto, Cool High, Cool Low, Fan High, Fan Low and Off in cooling, and from Gas Heat, Heat Elec (heat pump or electric strip heat) and Off in heating.The LCD also displays the mode that the particular zone is currently in.When the system is first powered up, the thermostat determines how many zones are connected to the system and only displays the zones detected.This will display which zone the user is looking at.The LCD display screen is the main interface between the user and the thermostat.This system can control up to four zones in a motor coach. A zone is an area of a motor coach that is climate controlled.This thermostat will work with any RV Products air conditioner that is controlled with an RV Products zone control box.Depending on the system that has been installed and programmed into the thermostat, each zone can be set up for a combination of the following systems: cool only units, heat/cool units, heat pump units and heating appliances. The thermostat system will operate in both heat and cool modes, but will not allow the user to run simultaneously in heat and cool mode.The 9330-33* zone thermostats create a climate control system that allows the operator to control up to four air conditioners or heat pumps and up to two heating sources with only one thermostat.Disconnect all power to the system before installing, removing, or cleaning. Adhere to all local and national codes.This thermostat should be installed and programmed by trained technicians only.When the LED is not lighted, there is a problem with the 12 Volt DC control voltage and it must be serviced by a trained technician. The green LED, when lighted, indicates that the control voltage is adequate to run the system. The control box mounted in the return air plenum has an opening that allows viewing of the green LED on the control board. The heating appliance control circuit must not exceed 1 Amp. Before programming the thermostat, it is imperative that the programmer knows the types of appliances that have been installed in the motor coach in each zone. The OEM installed the upper control boxes for the zone system at the factory and programmed the thermostat for the system that is installed in this motor coach. Zone arrangement should be set with the front of the vehicle as zone 1 and progress toward the rear of the coach. RV Products suggests the thermostat wiring be a minimum of 18 gauge. The OEM must supply the 12 VDC wiring and the heating appliance control wiring which connects to the 9-pin plug on the thermostat. The thermostat connects to the upper unit(s) with a 9-pin plug and 2-pin plug (see system wiring diagram). ![]() The thermostat wiring is factory installed by the OEM (original equipment manufacturer). Note that the generator will not be called for fan only operation or for gas heat operation. This calls for the generator to run when calling for the compressor for cooling or heating, or when calling for strip heat. Once temperature settings have been set for each zone in heating and cooling, the thermostat memory will retain these settings during seasonal changovers and times of no electrical power.Ī connection for an “Auto Generator Start” appliance is included on the upper unit control board that is mounted in the return air of the air conditioner or heat pump. 7 REFERENCE Coleman 9330A3341 PROGRAMMABLE Thermostats
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