Honeywell ERM5220R Install Manual
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CAUTION
ERM5220R
Equipment Remote Module
WITH REDLINK™ WIRELESS TECHNOLOGY
Table of Contents
About the ERM5220R 2
Installation Checklist 3
Terminal Designations 4
Installation 6
Checkout 12
Troubleshooting 13
Specifications 15
5 Year Warranty 17
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 controls, and/or personal injury.
INSTALL GUIDE
33-00135EFS-07
About the ERM5220R
THERMOSTAT
ERM
BOILER
ERM
WIRE
CONDENSING
UNIT
MCR35654
Fig. 1.
• Wireless RedLink™ communication between condensing unit/
compressor or boiler and thermostat.
• Eliminates the need to run additional wires to your equipment, for
example, during a heat pump upgrade.
• Suitable for outdoor use.
• Temperature sensor terminals for outdoor temp sensors or indoor
freeze protection.
• LEDs for easy installation checkout.
• May reduce damage to homes since wiring/drilling is eliminated.
NOTE: The ERM5220R is compatible with updated
models THX9421R5021, TH8321R1001,
TH8320R1003, and TH8110R1008.
THM5421R1021 EIM is also required with
THX9421R5021. Optional with other models.
33-00135EFS—07 2
Installation Checklist
INSTALL GUIDE
33-00135EFS-03
ERM5220R
Equipment Remote Module
WITH REDLINK™ WIRELESS TECHNOLOGY
Table of Contents
About the ERM5220R 2
Installation Checklist 3
Terminal Designations 4
Installation 6
Checkout 12
Troubleshooting 14
Specifications 16
5 Year Warranty 18
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 controls, and/or personal injury.
MATERIALS SUPPLIED:
M35671
• ERM5220R
• Wall Anchors (x2) and Mounting Screws (x2)
• Extra Cover Screw (optional)
• Installation Instructions
TOOLS NEEDED (NOT SUPPLIED):
M35669
M35672
•Drill
• Nut Driver Attachment for Drill
• Wire Stripper
• Small Flathead Screwdriver
• Phillips Screwdriver
• 120/240 V to 24 V Transformer (optional)
3 33-00135EFS—07
M35670
Terminal Designations
M35655
J
R
C
Y
D
L
S1
S1
TERMINALS FOR 10K OHM TEMPERATURE SENSOR. CAN BE USED TO SENSE OUTDOOR TEMPERATURES WHICH WILL BE DISPLAYED
ON A COMPATIBLE RedLINK THERMOSTAT.
COMPRESSOR LINE FAULT TERMINAL. FAULT OCCURRENCE WILL BE COMMUNICATED TO COMPATIBLE RedLINK THERMOSTAT.
COMPRESSOR DEFROST TERMINAL. DEFROST OCCURRENCE WILL BE COMMUNICATED TO COMPATIBLE RedLINK THERMOSTAT.
O/B TERMINAL FOR REVERSING VALVE ON HEAT PUMP.
SECOND STAGE OF TWO STAGE COMPRESSOR.
FIRST STAGE OF TWO STAGE COMPRESSOR.
TERMINALS FOR 24VAC POWER.
TERMINAL FOR JUMPER. JUMPER BETWEEN J AND R SHOULD BE IN PLACE FOR COMPRESSOR USE.
THE “D” TERMINAL OPERATES AS AN INPUT FOR DEFROST. ACTIVE INPUT ON “D” TERMINAL WILL POWER AUX1. IF “D” TO AUX1 IS NOT DESIRED, DO NOT
CONNECT “D” TERMINAL TO THE ERM5220R. THIS FEATURE IS ONLY ACTIVE WHEN THE THE ERM5220R IS CONFIGURED FOR USE WITH A COMPRESSOR
TERMINAL DESIGNATIONS FOR COMPRESSOR
O/B
T
Y2
T
1
1
Fig. 2. Terminal Designations for Compressor.
33-00135EFS—07 4
M35656A
TERMINALS FOR 10K OHM TEMPERATURE SENSOR. CAN BE USED FOR FREEZE PROTECTION IN THE CASE OF THE THERMOSTAT
LOSING THE SIGNAL TO THE ERM. SENSOR MUST REMAIN INDOORS TO BE USED FOR FREEZE PROTECTION.
L
S1
S1
TERMINAL DESIGNATIONS FOR BOILER
TERMINAL FOR HEAT CALL.
TERMINAL FOR HEAT CALL.
T
T
D
Y2
O/B
TERMINALS FOR 24VAC POWER.
TERMINAL FOR JUMPER. JUMPER BETWEEN J AND R SHOULD BE REMOVED FOR BOILER USE.
J
C
R
Y
NOTE: ERM WILL NOT SUPPORT SERIES20 OPERA TION. WHEN CONFIGURED AS A BOILER, THE Y RELAY SHALL BE OFF AT ALL TIMES.
Fig. 3. Terminal Designations for Boiler.
5 33-00135EFS—07
INSTALLATION
IMPORTANT
• The ERM is not compatible with RedLink Zone boards.
• To ensure that the ERM will receive a wireless signal at the
desired installation location, follow steps 1 to 5 in the Wiring
section.
• If your location has metal siding, the ERM’s signal may be
affected. If there is no communication or poor signal strength,
consider a different location.
• A Prestige (with EIM) or VisionPRO (with or without EIM) will
only allow one of the following configurations:
1) Enrolled with a single boiler configured ERM;
2) Enrolled with a single compressor configured ERM;
3) Enrolled with a single boiler configured ERM and enrolled
with a single compressor configured ERM.
Wiring
1. Make sure power to compressor/boiler is off.
2. Remove the front cover by loosening the cover screw and lifting
up from the bottom of the ERM.
3. Remove 3 to 4 inches of the cable’s outer sheathing, then
remove 3/8 to 1/2 inch of insulation from each wire.
M35674
Fig. 4. Cable prepared for wiring.
33-00135EFS—07 6
4. For compressor applications: Leave the jumper between termi-
nals J and R in place.
For boiler applications
: Remove the jumper between terminals
J and R.
FOR COMPRESSOR:
Jumper J and R
FOR BOILER:
Remove Jumper
R
C
J
O/B
Y2
Y
T
T
S1
D
S1
L
MCR35657
Fig. 5. Terminal Designations showing the jumper
between J and R terminals.
5. For compressors and boilers:
Connect a 24 VAC power source
to the R and C terminals on the ERM.
O/B
Y2
J
24V CAN COME FROM AIR HANDLER
24
(COMPRESSOR APPLICATION)
VAC
V c.a.
OR EXTERNAL TRANSFORMER
T
T
Y
R
C
S1
D
S1
L
M35658
Fig. 6.
6. Connect terminals from the ERM to the appropriate terminals
on the compressor/boiler control board.
7 33-00135EFS—07
COMPRESSOR
M35673
C
Y
D
L
S1 S1
J
R
O/B
T
Y2
T
T
EQUIPMENT
CONTROL
BOARD
10K OHM INDOOR
TEMPERATURE
SENSOR
(RECOMMENDED)
T
24
VAC
V c.a.
J
T
T
S1 S1
D
L
O/B
Y2
Y
R
C
24
VAC
V c.a.
C
R
Y
Y2
EQUIPMENT CONTROL BOARD
O/B
10K OHM OUTDOOR
TEMPERATURE
SENSOR (OPTIONAL)
D
L
M35668
Fig. 7.
BOILER
Fig. 8.
IMPORTANT
If the ERM was previously used with a compressor and will now
1) un-enroll the ERM at the thermostat;
be used with a boiler:
2) remove the jumper on the ERM;
33-00135EFS—07 8
3) designate Radiant Heat for Heating System Type
(ISU 2000) in your thermostat.
Once power is connected, the “Compressor” (or “Boiler”) LED should
OR
MCR35659
CONNECTED LED STATUS
Connect
Flashing: Device Connecting
Green: Device Connected
Red: Not Communicating
Compressor
Boiler
Connected
MCR35660
CONNECTED LED STATUS
Connect
Flashing: Device Connecting
Green: Device Connected
Red: Not Communicating
Compressor
Boiler
Connected
illuminate green. (Fig. 9)
Fig. 9.
7. For compressors and boilers:
Put the thermostat in pairing mode.
New thermostat installation: When going through the initial setup the
thermostat display will ask “TSTAT CONTROLS AN EQUIP MODULE”.
This refers to an EIM, not an ERM. See note below. The next screen
says “connect RedLINK Accessories?” The ERM is an accessory, so
select “yes”, and then “next”.
Existing thermostat installation
wireless manager - add device. See thermostat installation guide for
: Select menu - installer options -
assistance.
NOTE: The ERM (equipment remote module) is not an EIM
(equipment interface module).
• If using a Prestige IAQ thermostat, the EIM (THM5421R) is
always needed, whether the ERM is used or not.
• If using a RedLINK VisionPRO model, the EIM is not needed
if:
(a) there are wire connections to R and C at the
thermostat subbase and the thermostat controls hot
water heat only (no cooling).
(b) the R and C as well as furnace or air-handler wires are
connected to the subbase of the thermostat.
8. Once the thermostat is in pairing mode, press and quickly
release the “Connect” button on the ERM.
9 33-00135EFS—07
When the ERM is connected to the system, the ERM’s “Connected” LED will be
OR
MCR35661
CONNECTED LED STATUS
Connect
Flashing: Device Connecting
Green: Device Connected
Red: Not Communicating
Compressor
Boiler
Connected
MCR35662
CONNECTED LED STATUS
Connect
Flashing: Device Connecting
Green: Device Connected
Red: Not Communicating
Compressor
Boiler
Connected
MCR35665
MOUNTING
SCREWS
CORRECT
Equipment Remote Module I ERM5000R
Compressor
Boiler
Connected
Connect
CONNECTED LED STATUS
Flashing: Device Connecting
Green: Device Connected
Red: Not Communicating
Compressor:
Jump J and R
Boiler:
Remove Jumper
J
R
C
Y1
Y2
T
O/B
T
D
L
S1
S1
INCORRECTINCORRECT
Equipment Remote Module I ERM5000R
Compressor
Boiler
Connected
Connect
CONNECTED LED STATUS
Flashing: Device Connecting
Green: Device Connected
Red: Not Communicating
Compressor:
Jump J and R
Boiler:
Remove Jumper
J
R
C
Y1
Y2
T
O/B
T
D
L
S1
S1
Equipment Remote Module I ERM5000R
Compressor
Boiler
Connected
Connect
CONNECTED LED STATUS
Flashing: Device Connecting
Green: Device Connected
Red: Not Communicating
Compressor:
Jump J and R
Boiler:
Remove Jumper
J
R
C
Y1
Y2
T
O/B
T
D
L
S1
S1
solid green and the thermostat will show “ERM” in its Wireless Manager. (Fig.
10)
Fig. 10.
Mounting ERM
9. Use two screws and wall anchors to attach the ERM to the exterior wall near the compressor. The location should be at least
3 feet above ground and oriented with the two wire exits facing downward. See Figs. 11 and 12.
10. Attach cover and secure with bottom screw (Fig. 13).
33-00135EFS—07 10
Fig. 11. Mounting orientation.
MINIMUM
1/4 INCH GAP
M35666
Fig. 12. If mounting on lap siding,
allow space for the cover to be removed.
M35667
Fig. 13.
11 33-00135EFS—07
Checkout
M35680
Power the system on. Use the thermostat to start a cooling or heating cycle,
testing the ERM.
1. Restore power to the compressor/boiler as well as your RedLink
system.
2. Raise/lower the set point on the zone thermostat to initiate a
call for heat/cooling.
3. Observe all control devices to ensure operation and heat/cooling is active.
4. Lower/raise the set point on the thermostat to suspend the call
for heat/cooling.
5. If outdoor temperature sensor is used, check thermostat to see
the readings are active and accurate.
6. Be sure to set thermostat to the desired settings when checkout
is complete.
Fig. 14.
33-00135EFS—07 12
TROUBLESHOOTING
NOTE: Disconnect RedLink™ when making changes to the device.
RESET PROCEDURE:
Hold down the “Connect” button on the ERM for 10 seconds. The
“Connection” LED should appear red for a few seconds and go out. This
indicates the unit is reset.
Symptom Possible Cause Action
Relays don’t switch as
expected
Connected LED is red Loss of
Connected LED is off Device is not enrolled
No LEDs are on No power to device Verify 24 VAC at R/C
Incorrect jumper
configuration
communication with
system
with system
Check jumper
configuration. If
incorrect, unenroll
from system, change
jumper, then re-enroll
with system.
Verify thermostat
and/or Equipment
Interface Module are
powered and
functioning correctly.
Enroll with system.
terminals.
13 33-00135EFS—07
Symptom Possible Cause Action
No outdoor
temperature shown
on thermostat
No wired outdoor
temperature sensor
connected to ERM, or
device configured as
boiler
Thermostat shows “—”
for outdoor
temperature
Outdoor temperature
Wired outdoor
temperature sensor
failed
Sun load on sensor Verify outdoor
reading at thermostat
is too high
Compressor doesn’t
turn on, “Y” LED is
blinking
Emergency backup
control doesn’t
5-minute compressor
lockout after power
cycle
No valid indoor
temperature sensor
function
(if configured as
boiler)
Connect outdoor
temperature sensor
to S1/S1 terminals.
Device only reports
outdoor temperature
temperature when
configured as
compressor.
Check sensor for
short circuit or open
circuit.
temperature sensor is
not in direct sunlight.
May need to use
longer wire to mount
in ideal location.
Wait 5 minutes,
compressor will turn
on after safety
timeout.
Check sensor for
short circuit or open
circuit, or install
indoor temperature
sensor on S1/S1
terminals.
33-00135EFS—07 14
SPECIFICATIONS
Operating Ambient Temperature Range:
Compressor: -40 to +155 ºF (-40 to +68 ºC)
Boiler: 30 to +130 ºF (-1 to +54 ºC)
Operating Relative Humidity Range: 0 - 99 %
Electrical:
24 VAC, 50/60 Hz.
Dimensions:
175 mm x 168 mm x 38 mm
Wireless capability via RedLink™ technology.
6-39/64
(168)
6-7/8 (175)
1-31/64
(38)
M35664
Fig. 15. Dimensions.
15 33-00135EFS—07
SEPARABLE PARTS
ERM with TH8321R1001/U: YERM5220R8321
ERM with TH8321R1001/U and THM5421R1021: YERM5220RVPEIM
FCC REGULATIONS
§ 15.19 (A)(3)
This device complies with part 15 of the FCC Rules. Operation is
subject to the following two conditions:
1. This device may not cause harmful interference, and
2. this device must accept any interference received, including
interference that may cause undesired operation.
IC REGULATIONS
RSS-GEN
This device complies with Industry Canada’s licence-exempt RSSs.
Operation is subject to the following two conditions:
1. This device may not cause interference; and
2. This device must accept any interference, including interference
that may cause undesired operation of the device.
FCC WARNING
(§15.21) (USA ONLY)
Changes or modifications not expressly approved by the party
responsible for compliance could void the user’s authority to operate
the equipment.
33-00135EFS—07 16
5 YEAR WARRANTY
Honeywell warrants this product to be free from defects in the workmanship or
materials, under normal use and service, for a period of five (5) years from the
date of purchase by the consumer. If at any time during the warranty period the
product is determined to be defective or malfunctions, Honeywell shall repair
or replace it (at Honeywell's option).
If the product is defective,
(i) return it, with a bill of sale or other dated proof of purchase, to the place from
which you purchased it; or
(ii) call Honeywell Customer Care at 1-800-468-1502. Customer Care will
make the determination whether the product should be returned to the
following address: Honeywell Return Goods, Dock 4 MN10-3860, 1985
Douglas Dr. N., Golden Valley, MN 55422, or whether a replacement product
can be sent to you.
This warranty does not cover removal or reinstallation costs. This warranty
shall not apply if it is shown by Honeywell that the defect was caused by
damage which occurred while the product was in the possession of a
consumer.
Honeywell’s sole responsibility shall be to repair or replace the product within
the terms stated above. HONEYWELL SHALL NOT BE LIABLE FOR ANY LOSS
OR DAMAGE OF ANY KIND, INCLUDING ANY INCIDENTAL OR
CONSEQUENTIAL DAMAGES RESULTING, DIRECTLY OR INDIRECTLY, FROM
ANY BREACH OF ANY WARRANTY, EXPRESS OR IMPLIED, OR ANY OTHER
FAILURE OF THIS PRODUCT. Some states do not allow the exclusion or
limitation of incidental or consequential damages, so this limitation may not
apply to you.
THIS WARRANTY IS THE ONLY EXPRESS WARRANTY HONEYWELL MAKES
ON THIS PRODUCT. THE DURATION OF ANY IMPLIED WARRANTIES,
INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE, IS HEREBY LIMITED TO THE FIVE-YEAR DURATION
OF THIS WARRANTY.
Some states do not allow limitations on how long an implied warranty lasts, so
the above limitation may not apply to you. This warranty gives you specific
legal rights, and you may have other rights which vary from state to state.
If you have any questions concerning this warranty, please write Honeywell
Customer Care, 1985 Douglas Dr, Golden Valley, MN 55422 or call 1-800468-1502.
17 33-00135EFS—07
33-00135EFS—07 18
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