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DRISTEEM DRANE-KOOLER WATER TEMPERING DEVICE INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
Installation locations
INSTALLATION
STEP-BY-STEP INSTALLATION INSTRUCTIONS
1 . Verify that maximum flow of hot water into the Drane-kooler does not exceed 6 U .S . gallons
per minute (gpm) (22 .7 L/m) .
2 . Note that there are three connections to be made to the
Drane-kooler:
• Cold water supply
• Hot water inlet (from a humidifier or other appliance)
• Tempered water piping to drain
3 . Position the Drane-kooler to allow the most direct path of piping to minimize fittings (see the
piping diagrams on Pages 8-9) .
4 . Position unions on all connections as close to the Drane-kooler as possible to make cleaning
and maintenance easier .
5 . Cold water supply connection instructions:
• Cold water supply connection on valve is 3/8" (DN10) pipe thread .
• Pipe a 3/8" (DN10) line directly to the Drane-kooler from the main water supply line .
To ensure adequate water pressure to the Drane-kooler, do not connect to
a supply water line that is dedicated to other appliances.
If installing the Drane-kooler with a humidifier, do not branch off the 1/4" (DN8) cold
water supply line to the humidifier .
• Verify that the supply water pressure to the valve is at least 25 psi (172 kPa) and not more
than 80 psi (552 kPa) .
• Install a cold water supply union as close to the
Drane-kooler as possible .
• Install a cold water shut-off valve before the union in the cold water supply line .
6 . Hot water inlet connection instructions:
• Hot water inlet connection is 1" (DN25) pipe thread .
• Locate a union as close to the Drane-kooler as possible
• Run 1" (DN25) pipe as directly as possible from the hot water appliance (humidifier) to the
Drane-kooler . If the piping to the hot water inlet has a horizontal run, maintain a pitch to
the Drane-kooler of at least 1/8"/ft (1%) .
7 . Tempered water (to drain) connection instructions:
• Tempered water outlet connection is 2” (DN50) pipe thread .
• Install a union as close to the Drane-kooler as possible .
• Run a 2” (DN50) pipe as directly as possible from the Drane-kooler to the drain . Maintain
a pitch to drain of at least 1/8”/ft (1%) .
• Make sure there is a 1” (25 mm) air gap between the drain piping and the drain .
