ETI RCU-3, RCU-4 Installation Manual
®
RCU–3 REMOTE CONTROL UNIT
2,000' (609.6m) max,
2,000' (609.6m) max,
Part Number 21357
RCU–4 REMOTE CONTROL UNIT
We Manage Heat
®
Unpacking
Inspect the shipping container and packing material for damage. Save the shipping container and related materials until
normal operation has been established. If the unit must be returned, take care to ensure that it is packed as it was received.
Packing List
RCU–3 RCU–4
21357 RCU–3 Remote Control Unit (Qty 1) 21358 RCU–4 Remote Control Unit (Qty 1)
18581 Wall plate screws (Qty 2) 18581 Wall plate screws (Qty 2)
21385 25' unshielded 22 gauge 2-wire jacketed cable 21385 25' unshielded 22 gauge 2-wire jacketed cable
21370 RCU–3/RCU–4 Installation Manual 21370 RCU–3/RCU–4 Installation Manual
Part Number 21358
INSTALLATION MANUAL
RCU–3 Remote Control
ETI P/N 21357
RCU–4 Remote Control
ETI P/N 21358
2122
D2
D1
YEL
GRN
R3
R1
S3
R2
R4
J1
20' (6m) supplied
20' (6m) supplied
2
3
121314151617
181920
11
10
56789
1
4
Temperature Sensor Return
Remote Control Retur
Temperature Sensor
Remote Control
No Connection
No Connection
No Connection
n
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
EMC Input Common
No Connection
No Connection
EMC Output Common
EMC Override Off
EMC Override On
J1
EMC Supply Present
S3
R4
EMC Snow Present
EMC Heater On
D2
YELD1GRN
R3R2R1
No Connection
RCU–3 Remote Control
ETI P/N 21357
Equipment Ground
Equipment Ground
Fig 1: RCU–3 and RCU–4 remote connections to "C" Series
panels.
Environmental Technology, Inc.
1850 N Sheridan Street • South Bend, IN 46628
(574)233-1202 • Fax (574)233-2152
Toll Free (800)234-4239 • Fax (888)234-4238
www.networketi.com • helpdesk@networketi.com
21370 Rev. - 09/12 (800) 234-4239 http://www.networketi.com 1 of 2Environmental Technology, Inc.
Fig 2: RCU–3 remote connections to EUR–5A.
Model RCU–3 and RCU–4
ORDERING INFORMATION
Control Panels Description
22470 APS–3C Control Panel, 120 VAC
22471 APS–3C Control Panel, 208/240 VAC
22472 APS–4C Control Panel, 208-240 VAC 50/60 Hz Three Phase
22473 APS–4C Control Panel, 277 VAC 50/60 Hz Single Phase
22475 APS–4C Control Panel, 277/480 VAC 50/60 Hz Three Phase
22476 APS–4C Control Panel, 600 VAC 50/60 Hz Three Phase
22477 SC–40C Satellite Contactor, 208-240 VAC 50/60 Hz Three Phase
22478 SC–40C Satellite Contactor, 277 VAC 50/60 Hz Single Phase
22480 SC–40C Satellite Contactor, 277/480 VAC 50/60 Hz Three Phase
22481 SC–40C Satellite Contactor, 600 VAC 50/60 Hz Three Phase
21496 EUR–5A Snow Switch
Control Panel Accessories
21357 RCU–3 Remote Control (Optional; APS–3C only)(Qty 1 included EUR–5A only)
21358 RCU–4 Remote Control (Optional; APS–4C and SC–40C only)
25076 High Temperature Sensor w/ 20' (6m) lead (Qty 1 included)
22690 PTS–100 Embedded Temperature Sensor (Optional)
®
Snow/Ice Sensors (Not Included)
10001 CIT–1 Aerial Snow Sensor
11351 GIT–1 Gutter Ice Sensor
20756 SIT–6E Pavement Mounted Snow/Ice Sensor
LIMITED WARRANTY
ETI’s two year limited warranty covering defects in workmanship and materials applies. Contact Customer Service for complete
warranty information.
DISCLAIMER
Environmental Technology, Inc. makes no representations or warranties, either expressed or implied, with respect to the contents
of this publication or the products that it describes, and specifically disclaims any implied warranties of merchantability or
fitness for any particular purpose. Environmental Technology, Inc. reserves the right to revise this publication, and to make
changes and improvements to the products described in this publication, without the obligation of Environmental Technology,
Inc. to notify any person or organization of such revisions, changes or improvements.
The ETI logo, Snow Switch, Floorstat, Tracon, We Manage Heat, APS, RCU, CIT, GIT, SIT are registered trademarks of Environmental Technology, Inc.
Copyright © 2012 Environmental Technology, Inc. All rights reserved.
2 of 2 Environmental Technology, Inc.
21370 Rev. - 09/12(800) 234-4239http://www.networketi.com
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