Replacement Parts List

Manifold Control Cables (Type K)
One required for each tankless water heater
installed in a manifold. Connects a single tankless
water heater to the MIC-180.
Notice: These cables will not fit the MIC-6.
• RTG20126C - MIC-K-16
16-ft. Control Cable
• RTG20126D - MIC-K-32
32-ft. Control Cable
• RTG20126E - MIC-K-65
65-ft. Control Cable
Tankless Manifold Systems
MICS-180
MIC-185
MIC-185 Manifold Controller System
• RTG20126A
Manifold and control up to 6 tankless models.*
Includes installation cabinet for indoor
or outdoor applications.
MICS-180 Manifold Controller Expansion Card
• RTG20126B
Add on to the MIC-185 for up to 20 units in total.**
Installations of 7 to 20 units require this expansion card.
Mounts inside the MIC-185 cabinet. Includes cables
to connect to the MIC-185 board.
Replacement Manifold Control Board
• RTG20126W - MIC-185 Board
Replacement board for the MIC-180 or MIC-185.
EZ-Link
™
Cable
Connect two tankless water heaters together in a manifold***
†
This will allow two heaters to communicate together and operate
as a single unit. Perfect for when one tankless is just not enough.
• RTG20040
6-ft. Long Cable with Connectors and Wire Support Clamps
* Only RTG2-42, RTG-53 Models, RTG-66 or RTG-74, GT-199 models that have a -1 or greater suffix and all RTG-95, RTG-84, RTG-64, RTGH-84, RTGH-90 and RTGH-95 models.
Commercial upgraded models will be limited to 180°F or 185°F in a manifold system. Residential models are limited to 140°F.
** This card provides control cable connection points for 7 - 20 units in multi-unit manifold.
EZ-Link
™
: Connect two tankless water heaters
Enlarged
EZ-Link™
Cable
Connector
EZ-Link
™
Cable
MIC-185 Manifold Controller System
Connect up to 20 tankless water heaters
MIC-6 Manifold Controller System
Connect up to 6 tankless water heaters
*** Only two units may be connected together with the EZ-Link™ cable.
† Only Identical models: all RTG-95, RTG-84, RTG-64, RTGH-84,
RTGH-90, and RTGH-95 models can be used with the EZ-Link Cable.
MIC-6 Manifold Controller System
For the RTGH-95, RTGH-90, RTGH-84, RTG-95, RTG-84, and RTG-64 series models only.
Connect up to 6 tankless water heaters together in a manifold. This kit mounts inside a single
tankless unit and connects to up to 5 additional units for a total of 6.
Notice: This kit will not work on any model manufactured before Jan 2010.
• RTG20213A
Connect up to 6 tankless water heaters together in a manifold
.
Includes (1) 1-ft. control cable and (1) 6-ft. control cable. Additional Type Q cables
are necessary and listed below.
Manifold Control Cables (Type Q)
One required for each tankless water heater installed in a manifold. Connects
a single tankless water heater to the MIC-6.
Notice: These cables will not fit the MIC-185 System.
• RTG20213B - MIC-Q-1 1-ft. Control Cable
• RTG20213C - MIC-Q-6 6-ft. Control Cable
• RTG20213D - MIC-Q-18 18-ft. Control Cable
MIC-6 Kit
MIC-6
Installed
for Rheem, Ruud, Rheem-Ruud, Richmond, EcoSense and Paloma tankless water heaters | 7