Chicago Faucet 115.840.21.1 Installation Manual

Exposed Electronic Flushometer Valve –
Installation Instructions

Urinal Models Toilet Models

Retrofit Right Rough-In 115.840.21.1 Retrofit Right Rough-In 115.844.21.1
Retrofit Left Rough-In 115.841.21.1 Retrofit Left Rough-In 115.845.21.1
Complete Right Rough-In 115.842.21.1 Complete Right Rough-In 115.846.21.1
Complete Left Rough-In 115.843.21.1 Complete Left Rough-In 115.847.21.1

Box Contents:

Retrofit Models Complete Models
Flushometer Body Flushometer Body
4 - “AA” Batteries 4 - “AA” Batteries
Battery Holder Battery Holder
Allen Wrench Allen Wrench
Inlet Filter Inlet Filter

Control Stop Valve
Spud Tube with Vacuum Breaker and Nuts
Spud Flange

** For Retrofit models, skip to Step 3

Step 1 – Install Control Stop Valve

• Thread the 1" or 3⁄

4" Stop Valve to the pipe nipple extending

from the wall.

• The water inlet to the flushometer body should be aligned with the
spud inlet on top of the fixture (i.e. urinal) but at a minimum of 2–

3

⁄4".

• Pipe sealant is acceptable on the connecting thread with the
pipe nipple only.

• Flush water line to clear debris by opening Stop Valve momentarily

Step 2 – Install Spud Tube with Vacuum Breaker and Flange

• Place Spud Flange on top of fixture

• Assemble: Spud Coupling, Spud Nut,
Slip Ring, and Rubber Washer onto
Spud Tube with Vacuum Breaker

• Insert Spud Tube with parts into Spud
Inlet on top of fixture

• Hand Tighten

Settings:

(Adjustments Made with Service Remote Control 115.830.00.1)
Flush Volume (Specified when ordering)

Model

Default Adjustment Range Increment
Urinal 0.5 or 1.0 or 1.5 (GPF) 0.3 – 1.5 0.1
Toilet 1.6 or 3.5 (GPF)1.0 – 3.5 0.1

Dwell Time (Time a person must be in range)

Model

Default Adjustment Range Increment
All 7 (Sec.) 1 – 10 1

Flush Delay (Delay after person leaves range to flush start)

Model Default

Adjustment Range Increment

All 2 (Sec.) 0 – 5 1

Reseal Volume (Optimizes flush performance)

Model Default

Adjustment Range Increment

Toilet 0.3 – 0.5 (GPF) 0.1 – 0.9 0.1

Dynamic Flush (Reduces GPF in very frequent usage periods)

Model Default Adjustment Range
Urinal Off On/Off

User Detection Range (Adjusts max. range of sensor)

Model

Default Adjustment Range Incr

ement
Urinal 20" 15" – 42" 1
Toilet 30" 15" – 42" 1

* See the Service Remote Control documentation for many other adjustable settings