General Information FAST-STAT wiring extenders electronically add more wires to a control cable. Saves significant time and expense as compared to repulling of new cables. Causes no damage to walls or ceilings as compared to access holes that are often needed when re-pulling cables. The Sender and Receiver communicate over the existing thermostat cable and/or outdoor unit cable. Not a wireless system and therefore avoids all the problems that wireless systems may have. No batteries required. All FAST-STAT models are powered by the existing 24 volt transformer. Compatible with all conventional wiring systems using R, C, W, W2, Y, Y2, G, O/B and other terminals. Works with old and new systems. Can be connected to older systems such as thermopile millivolt, standing pilot systems, intermittent pilot controllers, fan centers etc. Can be used with oil burners, zone controllers and other systems that require dry contact switching. Works over long cable lengths up to 500 ft and more. FAST-STAT Wiring Extenders do not produce interference with other electronic devices nor are they affected electronic devices that produce large amounts of interference. Many FAST-STAT Wiring Extenders can be used in the same building or complex without interference between units. Low power use. Most FAST-STAT models use less than 3 watts of power.
Model 7000 Model 7000 The Model 7000 is used for air conditioner to heat pump conversions. It requires a minimum of a 4-thermostat cable and a 2-wire heat pump cable. It can operate single or 2-stage heat pumps. The Sender is installed into the wall cavity behind the thermostat. The Indoor Unit Module is installed at the furnace or air handler. The Heat Pump Module is installed at the heat pump. The Model 7000 also has an optional use built-in fossil fuel kit.
Model 7000 How It Works 1. When the thermostat calls for the heat pump compressor to run, it will apply power to the Sender Y1 wire which will energize the Y1 relay in the Outdoor Unit Module. This completes the circuit between R and Y1, which will start the compressor. 2. If the heat pump is a 2-stage unit, when power is applied to the Sender Y2 wire, the Y2 relay in the Outdoor Unit Module will energize and cause the compressor to run in high speed. The Y2 relay in Indoor Unit Module will also energize and its Y2 wire is used to switch the fan into high speed. 3. The Sender G wire operates the Indoor Unit fan. 4. The Sender W wire can be connected to thermostat as Aux Heat, Emergency Heat, W or W2 as may be required. It will start the Indoor Unit heating system when power is applied the Sender W wire. 5. The Sender OB wire is used to operate the reversing valve. 6. The Sender R and C wires supply 24 volt power to the thermostat. 7. The Heat Pump Module W wire is connected to the defrost control. When the heat pump is in defrost mode, the indoor unit heating system will start. 8. The Heat Pump Module has an optional use fossil fuel kit. When a thermostat (not included) is mounted at the heat pump, it can be set to a temperature that will shut off the compressor and start the Indoor Unit heating system when the temperature falls to the thermostat set point. On a call for heat, the outdoor thermostat will either run the compressor or start the Indoor Unit heating system based on the outdoor air temperature and the temperature setting of the heat pump located thermostat. 9. There are two wiring methods. One method is referred to as the two transformer method. For this method a transformer is installed at the heat pump. This transformer only provides power the heat pump. The other method is referred to as grounded commons. This method requires that the common wires on the Heat Pump Module are connected to chassis ground. A transformer is not required at the heat pump when using the grounded commons method.
Model 7000 - How to Test 1. Test for 24 volt power at the RED and BLACK wires at the Sender, Indoor Unit Module and the Heat Pump Module. If there is no power at any one or more locations check wiring and the control board fuse. If using the grounded commons wiring method, a BLACK wire at the Heat Pump Module must be connected to chassis ground. 2. At the indoor unit, disconnect the wire connected to Heat Pump Module ORANGE and connect this wire to indoor unit R terminal. When 24 volt power is applied to the ORANGE wire, Y1, Y2 & OB should switch on at the Heat Pump Module. Reconnect wiring after testing. 3. At the indoor unit, disconnect the thermostat cable wire connected to Indoor Unit Module PURPLE and connect the PURPLE wire to indoor unit R terminal. When 24 volt power is applied to the PURPLE wire, G & W should switch on at the Indoor Unit. Reconnect wiring after testing. 4. At the indoor unit, disconnect the thermostat cable wire connected to Indoor Unit Module GREY and connect the GREY wire to indoor unit R terminal. When 24 volt power is applied to the GREY wire, W should switch on at the Indoor Unit and Y1, Y2 & OB at the Heat Pump Module should also switch on. Reconnect wiring after testing. 5. At the thermostat, connect the RED to the GREEN then YELLOW, then BROWN, then WHITE, then BLUE. Each function should start when tested.