Honeywell ERM5220R Product Data

WITH REDLINK™ WIRELESS TECHNOLOGY CAUTION Read these installation instructions completely and follow them carefully. Installation must be performed by a qualified service technician and must comply with local codes. Disconnect power to all relevant devices before installing or servicing the ERM. Failure to connect the device according to these instructions may result in damage to the device, the c ...

33-00205—01 2 ORDERING INFORMATION When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the TRADELINE® Catalog or price sheets for complete ordering number. If you have additional questions, need further information, or would like to comment on our products or services, please write or phone: 1. Your local Honeywell Environmental and Combustion Controls Sales Of ...

3 33-00205—01 COMPATIBLE PRODUCTS NOTE: The ERM5220R may only be used with the thermostats listed below. Look for this image on these products. If you no longer have the thermostat or EIM packaging, verify thermostat model and manu- facture date are compatible with ERM. The date code of thermostat (and EIM, if used) must be 1546 or above (more recent). Compatible models of thermostat and EIM are listed in Tables 1 and 2. ...

33-00205—01 4 BUTTONS, LEDS AND TERMINALS Fig. 3. J R C Y Y2 T D L S1 S1 O/B T Equipment Remote Module − Model: ERM5220R Connect TAB FOR COVER SCREW: (#10-24 UNC 3/8 PHILLIPS PAN HEAD MACHINE SCREW.) M36109 WIRING CHANNELS DRAIN HOLES FOR WATER MOUNTING TABS: SCREW ERM TO WALL BY OUTDOOR UNIT OR BY BOILER. SEE PAGE 6. WIRING TERMINAL SCREWS: SEE TERMINAL FUNCTIONS ON PAGE 5 AND FIGURES 10-15. LEDS: • Y LED INDICATES T ...

5 33-00205—01 Fig. 4. Terminal Designations for Compressor. Fig. 5. Terminal Designations for Boiler. 1 THE “D” TERMINAL OPERATES AS AN INPUT FOR DEFROST. ACTIVE INPUT ON “D” TERMINAL AT ERM WILL TELL THE THERMOSTAT TO POWER THE AUX (OR AUX 1) TERMINAL AT THE SUBBASE OR EIM. IF “D” TO AUX IS NOT DESIRED, DO NOT CONNECT “D” TERMINAL TO THE ERM5220R IS CONFIGURED FOR USE WITH A COMPRESSOR. TERMINAL DESIGNA ...

33-00205—01 6 Installation Checklist MATERIALS SUPPLIED: • ERM5220R • Wall Anchors (x2) and Mounting Screws (x2) • Extra Cover Screw (optional) • Installation Instructions (33-00135EFS) TOOLS NEEDED (NOT SUPPLIED): • Drill • Nut Driver Attachment for Drill • Wire Stripper • Small Flathead Screwdriver • Phillips Screwdriver • 120/240 V to 24 V Transformer (Furnace or Air-handler transformer can be used ...

7 33-00205—01 INSTALLATION IMPORTANT • The ERM is not compatible with forced air zone boards (see the FAQ on page 27 for details). • To ensure that the ERM will receive a wireless signal at the desired installation location: (a) Do not mount the ERM in a metal box. This would impede the RedLINK wireless signal. (b) If your location has metal siding, the ERM’s signal may be affected. If there is no communication or p ...

33-00205—01 8 WIRING DIAGRAMS Fig. 10. Compressor for conventional application. J R C Y Y2 T D L S1 S1 O/B T Y OUTDOOR UNIT C Y 2 L2 L1 C R LOW VOLTAGE TRANSFORMER WIRE TRANSFORMER PRIMARY TO APPROPRIATE 120, 208, OR 240 VOLTAGE POWER SUPPLY AT OUTDOOR UNIT. TRANSFORMER NOT NECESSARY IF THERE ARE TWO WIRES AVAILABLE FROM R AND C ON INDOOR UNIT TO R AND C ON ERM. FOLLOW TRANSFORMER INSTALL GUIDE FOR WIRING OF TRANSFORMER ...

9 33-00205—01 Fig. 11. Heatpump. J R C Y Y2 T D L S1 S1 O/B T Y HEATPUMP C Y2 L2 L1 C R 1 2 3 4 O D 5 6 8 R Y C G W R AIR HANDLER OR FURNACE OR Y C G O W R Y C Y2 W AUX/E Rc R O/B G W2 6 L 11 10 9 7 WIRE TRANSFORMER PRIMARY TO APPROPRIATE 120, 208, OR 240 VOLTAGE POWER SUPPLY AT OUTDOOR UNIT. TRANSFORMER NOT NECESSARY IF THERE ARE TWO WIRES AVAILABLE FROM R AND C ON INDOOR UNIT TO R AND C ON ERM. FOLLOW TRANSFORMER INSTA ...

33-00205—01 10 Fig. 12. Boiler with a single zone. J R C Y Y2 T D L S1 S1 O/B T T (W) T (R) L2 L1 C R 1 2 3 4 Y C G Y2 R Y C Y2 Rc R G 5 6 WIRE TRANSFORMER PRIMARY TO APPROPRIATE 120, 208, OR 240 VOLTAGE POWER SUPPLY. FOLLOW TRANSFORMER INSTALL GUIDE FOR WIRING OF TRANSFORMER PRIMARY. WIRE TRANSFORMER LOW VOLTAGE SECONDARY (R AND C) TO ERM5220R AS SHOWN. REMOVE JUMPER WIRE FROM J TO R. INDOOR SENSOR IS OPTIONAL. IF USED ...

11 33-00205—01 Fig. 13. Power-open/spring closed zone valve. J R C Y Y2 T D L S1 S1 O/B T TR TH L2 L1 C R 1 2 3 4 Y C G Y2 R Y C Y2 Rc R G 5 6 WIRE TRANSFORMER PRIMARY TO APPROPRIATE 120, 208, OR 240 VOLTAGE POWER SUPPLY. FOLLOW TRANSFORMER INSTALL GUIDE FOR WIRING OF TRANSFORMER PRIMARY. WIRE TRANSFORMER LOW VOLTAGE SECONDARY (R AND C) TO ERM5220R AS SHOWN. REMOVE JUMPER WIRE FROM J TO R. ADD JUMPER FROM R TO ONE OF TH ...

33-00205—01 12 Fig. 14. Series 20, Power-open/power closed zone valve. L2 L1 C R 1 2 4 6 1 2 3 6 4 5 3 1 2 7 5 Y C G Y2 R Y C Y2 Rc R G WIRE TRANSFORMER PRIMARY TO APPROPRIATE 120, 208, OR 240 VOLTAGE POWER SUPPLY. FOLLOW TRANSFORMER INSTALL GUIDE FOR WIRING OF TRANSFORMER PRIMARY. WIRE TRANSFORMER LOW VOLTAGE SECONDARY (R AND C) TO ERM5220R AS SHOWN. REMOVE JUMPER WIRE FROM J TO R. ADD JUMPER FROM R TO ONE OF THE T TER ...

13 33-00205—01 Fig. 15. Hot water relay panel. J R C Y Y2 T D L S1 S1 O/B T T(W) T(R) L2 L1 C R 1 2 3 4 Y C G Y2 R Y C Y2 Rc R G 5 6 WIRE TRANSFORMER PRIMARY TO APPROPRIATE 120, 208, OR 240 VOLTAGE POWER SUPPLY. FOLLOW TRANSFORMER INSTALL GUIDE FOR WIRING OF TRANSFORMER PRIMARY. WIRE TRANSFORMER LOW VOLTAGE SECONDARY (R AND C) TO ERM5220R AS SHOWN. REMOVE JUMPER WIRE FROM J TO R. INDOOR SENSOR IS OPTIONAL. IF USED ON TH ...

33-00205—01 14 LINKING ERM5220R TO A NEW COMPATIBLE THERMOSTAT. NOTE: If thermostat setup had already been done but ERM5220R had not been linked to the thermostat, see page 16. 1. Verify thermostat model and manufacture date are compatible with ERM (should say compatible with ERM on packaging). Information about compatible models of thermostat and EIM is on page 3. 2. Turn on power. Once power is connected, the “Compres ...

15 33-00205—01 12. Press/release the “Connect” button on the ERM5220R. After releasing the button, the Connected LED should flash green and then turn solid green. 13. Back at thermostat, display will indicate that the Equipment Remote Module has been added. Press “Next” to continue with the installer setup options. 14. Go through the rest of the ISU settings. For boiler systems make sure to designate “Radiant He ...

33-00205—01 16 LINKING ERM5220R TO AN EXISTING COMPATIBLE THERMOSTAT. Verify thermostat model and manufacture date are compatible with ERM. Information about compatible models of thermostat and EIM is on page 3. 1. Turn on power. Once power is connected, the “Compressor” (or “Boiler”) LED should illuminate green. 2. Reset procedure at ERM: (Skip to step 3 if ERM is new) If you want to unlink the ERM from any RedLI ...

17 33-00205—01 10. Scroll down until “Remove Device” is highlighted. Press “Select”. 11. Scroll down until “Equip Rem. Module” is selected. And press “Select”. Display says “Remove Equip. Rem. Module?” Select “Yes”. 12. Scroll up or down until “Add Device” is highlighted in screen. Then press “Select”. 13. The thermostat display says “Press Connect on New Accessories”. 14. Press/release ...

33-00205—01 18 Checkout 1. Verify power is on to the compressor or boiler as well as your RedLINK thermostat and ERM. 2. If testing ERM for heat, switch thermostat to heat and raise set-point above room temperature. If testing ERM for cooling, switch thermostat to cool and lower set-point below room temperature. 3. The thermostat may say “waiting for equipment” for up to 5 minutes when controlling the outdoor unit. Th ...

19 33-00205—01 OPERATION ERM USED FOR OUTDOOR UNIT: CALL FOR COOLING 1. Thermostat is set to cool or auto mode. Cool set-point is below room temperature. 2. Thermostat will show “cool on” in the display. (the display may show “waiting for equipment” if the minimum com- pressor off delay has not expired prior to the call for cool. Typically this is up to 5 minutes). • If thermostat is set for either conventional ...

33-00205—01 20 TROUBLESHOOTING Symptom Possible Cause Action Connected LED is red Loss of communication to thermostat. Check thermostat display to see if it is blank or shows error codes. If there had been a loss of power to the thermostat it could take up to 6 minutes before communication is restored. If thermostat display is blank, check power at thermostat subbase. R and C on THX9421R models. Rc and C at TH8000R series ...