Kohler Digital Interface K-684 - Manual (Page 2)

IMPORTANT INSTRUCTIONS
WARNING: When using electrical products, basic precautions should always be followed, including
the following:
DANGER: Risk of electric shock. Connect only to circuits protected by a Ground-Fault
Circuit-Interrupter (GFCI) or Earth-Leakage Circuit Breaker (ELCB). Grounding is required. The unit
should be installed and grounded by a qualified service representative.
WARNING: Risk of electric shock. A licensed electrician should route all electrical wiring.
WARNING: Risk of electric shock. Disconnect power before servicing.
WARNING: Risk of injury or property damage. Please read all instructions thoroughly before
beginning installation.
NOTICE: Follow all plumbing, electrical, and building codes.
Specifications
Pressures
Maximum Static Pressure
125 psi, 862 kPa, 8.6 bar
Supply Pressure Differential* Max 5 psi, 34.5 kPa, 0.34 bar (Equal pressures recommended.)
Minimum Flow Rate 1.6 gpm (Less than 72 psi dynamic pressure.)
6 lpm (Less than 500 kPa maintaining pressure.)
2.1 gpm (Greater than 72 psi dynamic pressure.)
8 lpm (Greater than 500 kPa maintaining pressure.)
Temperatures
Programmable Temperature
Max 120°F (49°C) Min 79°F (26°C) Full cold may also be selected.
Default Temperature at Start-up 102°F (39°C)
Minimum Mixed Temperature
Differential from Hot Supply
3.6°F (2°C)
Optimum Thermostatic Control Range 86°F (30°C) to 120°F (49°C)
Temperature Stability at Recommended
Supply Conditions
+/- 1.6°F (1°C)
Ambient Temperature Greater than 34°F (1°C), Max 104°F (40°C)
Maximum Relative Humidity 95% non-condensing
Electrical
Electrical Service
100-240 VAC, 50-60 Hz, 1.5 A
User Interface Cable Length (supplied) 30 ft (9.14 m)
* In commercial applications where there is a large difference in hot and cold supply pressures or frequent
fluctuation in either supply line is anticipated, it is strongly recommended that pressure regulators be
installed.
1043184-2-B 2 Kohler Co.