SCI ERV-24-HC11 Spécifications

Technician Settings ERV-24-HC11With FanCycler® Pipersville, PA 18947 USA Phone: 215-766 1487 - Fax: 215-766 1493 Email: [email protected] - ww

10 6.1.2 Remote sensor wiring configurations 1. Connection of one remote sensor (RS01) 2. Connection of two remote sensors for average

11 7. Advanced Setup The ERV-24-HC11 thermostat with FanCycler® has enhanced features to compliment controlled mechanical ventilation systems

12 8. Fan Cycling Configuration The purpose of fan cycling is to assure that the central air handler fan will run enough to distribute ventilatio

13 8.1 Set the fan cycling ON time and OFF time. a. Press and hold the Select button until “LI” or ”UnLI” or ”CALC” appears on display. b. Us

14 c. Press the Select button again – four digits will appear on display. d. Using the “+” and “-“ buttons adjust the fan cycling limited ON time

15 8.2 Set the fan duty cycle percentage and the total period. a. Select “Calc” in 8.1.b b. Press the Select button once - “Fd” will appear on

16 9. Ventilation Damper Cycling The purpose of cycling the ventilation damper is to limit the possibility of over-ventilating, which could cause

17 9.2 Set the damper cycling CLOSE time (“dC”). a. Press the Select button until “dC” appears on display. b. Using the “+” and “-“ buttons adj

18 11. Fan cycling at night in heating mode status (“Fn”) Depending on the duct system design and the occupants, it may be desirable to not allow

19 12. Pump cycling for combination space and domestic hot water heating systems (“FE”) As building enclosures become more energy efficient and

2 Please read this manual carefully before installation and use. Index Introduction 1 Options and Accessories 2 Installation Ins

20 13. Data Storage for System Diagnostics The following data is stored by the thermostat to allow advanced system diagnostics: • Average cooli

21 To clear the average values follow these steps: 1. Press and hold (6 seconds) the On/Off button to set the system mode to OFF 2. Using the “

22 15. Offset Settings The Offset is used for field calibration of the measured temperature if necessary. • Press and hold (6 seconds) the On/O

23 16. Troubleshooting for Technician Problem Solution Check the thermostat for 24 VAC, remove the front cover and test between Rc/Rh to C. Ch

24 SCI - Systems Controls & Instruments can offer a WIDE range of products for the HVAC industry, Such as: • Flush Mount Thermostats - Prog

3 1. Introduction Advanced Ventilation Features of the ERV-24-HC11 thermostat with FanCycler® Protected by one or more of the following pat

4 2. Options and Accessories Remote sensor option: • RS01: for remote temperature sensing (1 required); for averaging temperature at 4 location

5 On/Off Select ProgCoolHeatAutoFanSettingMake electrical connections as shown on enclosed electrical wiring diagram. (Next page) Verify that y

6 JMP10 JMP1 JMP2ABA B DIP switchJMP10JMP 1 JMP 2Y2 FD The Rc/Rh terminals are bridged at the factory for a one transformer application. In the c

7 Table 5.1 – DIP switch selection DIP Switch settings FUNCTION 1 2 3 4 5 6 Internal temp. sensor1 ON x x x OFF ON Remote temp. sensor OF

8 A BAB 5.4 Jumpers explanation Jumper 1: Complete Reset of the unit. For complete reset: • Move JMP1 to position B. • Wait 15 seconds. • Ret

9 6. Remote temperature sensor connections – (optional) Important! The remote temperature sensor must be SCI type. Table 6.1 - N.TC. Sensor: T