ETI RCU-3 User manual

21370 Rev. - 09/12 [phone] http://www.networketi.com 1 of 2Environmental Technology, Inc.
We Manage Heat ®
®
INSTALLATION MANUAL
RCU–3 REMOTE CONTROL UNIT
Part Number 21357
RCU–4 REMOTE CONTROL UNIT
Part Number 21358
Environmental Technology, Inc.
1850 N Sheridan Street • South Bend, IN 46628
[phone] • Fax [phone]
Toll Free [phone] • Fax [phone]
www.networketi.com • [email protected]
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
1
2
3
4
56789
10
11
121314151617
181920
2122
S3
R3
R2
R1
D2
YEL
D1
GRN
R4
J1
RCU–3 Remote Control
ETI P/N 21357
RCU–4 Remote Control
ETI P/N 21358
2,000' (609.6m) max,
20' (6m) supplied
RCU–3 Remote Control
ETI P/N 21357
Equipment Ground
No Connection
EMC Heater On
EMC Snow Present
EMC Supply Present
EMC Output Common
EMC Override Off EMC Override On
EMC Input Common
No Connection No Connection No Connection No Connection
Remote Control Return
Remote Control
No Connection
Temperature Sensor Return
Equipment Ground
Temperature Sensor
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
S3
R3
R2
R1
D2
YEL
D1
GRN
R4
J1
2,000' (609.6m) max,
20' (6m) supplied
Fig 1: RCU–3 and RCU–4 remote connections to "C" Series
panels.
Fig 2: RCU–3 remote connections to EUR–5A.

21370 Rev. - 09/12(800) 234-4239http://www.networketi.com
2 of 2 Environmental Technology, Inc.
Model RCU–3 and RCU–4
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.
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