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Istruzioni per l'uso Johnson Controls, Modello CM8M/CMLM*MP

Produttore : Johnson Controls
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File Nome : ffc54bf8-7a9f-4440-a869-54241bb39936.pdf

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LO COMP Single Stage Compressor (OUT) O Reversing Valve Energized in Cool HI COMP Second Stage Compressor (OUT) Change Hot Heat Pump jumper on the heat pump control to “ON” if Hot Heat Pump Operation is desired. External Humidistat (Optional) Open on Humidity Rise 3 ID MODELS TM(8,L)M YM(8,L)M CM(8,L)M LM(8,L)M FIGURE 25: Thermostat Chart - Two Stage Heat Pump – Variable Speed or PSC Modulating Furnace Johnson Controls Unitary Products 368261-UIM-A-0508 18 Johnson Controls Unitary Products ACCESSORY CONNECTIONS The furnace control will allow power-switching control of various accessories. ELECTRONIC AIR CLEANER CONNECTION Two 1/4” (0.64 cm) spade terminals (EAC and NEUTRAL) for electronic air cleaner connections are located on the control board. The terminals provide 115 VAC (1.0 amp maximum) during circulating blower operation. HUMIDIFIER CONNECTION Two 1/4” (0.64 cm) spade terminals (HUM and NEUTRAL) for humidifier connections are located on the control board. The terminals provide 115 VAC (1.0 amp maximum) during heating system operation. A mounting hole is provided on the control panel next to the furnace control board for mounting a humidifier transformer if required. HUMIDISTAT CONNECTION For better humidity control during cooling operation, an external humidistat may be used. When using a external humidistat, put the HUMIDISTAT jumper in the “YES” position. Connect the low voltage wiring as shown in Figures 20-25, Thermostat Charts. SECTION VI: TWINNING AND STAGING Twinning and staging is NOT allowed for modulating furnaces. SECTION VII: VENT SYSTEM VENT CONNECTIONS Figure 26, "Combustion Air Inducer" shows the furnace as it is shipped from the factory. To convert to a horizontal or downflow position, remove the four screws that secure the inducer assembly and rotate 90° being careful not to damage the gasket. Reinstall screws. Remove cap from appropriate vent outlet location on the cabinet cut insulation in cabinet to same size as the hole provided and reinstall cap in the hole in the top panel. CATEGORY 1 - 450 F. MAX. VENT TEMP. The venting system must be installed in accordance with Section 5.3, Air for Combustion and Ventilation, of the National Fuel Gas Code Z223.1/NFPA 54 (latest edition), or Sections 7.2, 7.3 or 7.4 of CSA B149.1, National Gas and Propane Codes (latest edition) or applicable provisions of the local building code and these instructions. The furnace shall be connected to a type B vent connector, and shall be connected to a type B vent only. The furnace shall not be connected to a chimney flue serving a separate appliance designed to burn solid fuel. Single-wall vent pipe is not allowed. It is recommended that the appliance is installed in a location where the space temperature is 32 °F (0°C) or higher. If the appliance is installed in a location where the ambient temperature is below 32 °F (0°C), the combustion byproducts could condense causing damage to the appliance heat exchanger. This appliance may be common vented with another gas appliance for residential installations as allowed by the codes and standards listed in these instructions. VENTING Category I venting consists of vertically venting one or more appliances in B-vent or B-vent connectors. Type B-vent system extends in a general vertical direction and does not contain offsets exceeding 45°. A vent system having not more than one 60° offset is permitted. VENTING INTO AN EXISTING CHIMNEY This furnace may not be connected to any masonry chimney. However, an existing masonry chimney may be used on as a chase through which the metal vent pipe passes. FAN-ASSISTED COMBUSTION SYSTEM This appliance is equipped with an integral mechanical means to draw products of combustion through the heat exchanger. Ambient Combustion Air Supply This type installation will draw the air required for combustion from within the space surrounding the appliance and from areas or rooms adjacent to the space surrounding the appliance. This may be from within the space in a non-confined location or it may be brought into the furnace area from outdoors through permanent openings or ducts. A single, properly sized pipe from the furnace vent connector to the outdoors must be provided. For upflow models combustion air is brought into the furnace through the unit top panel opening. In downflow applications, do not block the combustion air inlet. The furnace must be installed on a coil cabinet or subbase to allow combustionair to enter the burner compartment. FIGURE 26: Combustion Air Inducer COMBUSTION AIR INDUCER 90° Mounting Screw 90° (Remove) Flue Transition (Do Not Remove) Mounting Screw (Remove) Pressure Switch Pressure Switch Tube Routing FIGURE 27: Combustion Airflow Path Through The Furnace Casing to the Burner Compartment This type of installation requires that the supply air to the appliance( s) be of a sufficient amount to support all of the appliance(s) in the area. Operation of a mechanical exhaust, such as an exhaust fan, kitchen ventil...