10
CRUV INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
DriSteem's Drane-kooler, shown mounted to a
CRUV humidifi er, tempers discharged water.
For other Drane-kooler mounting options or
for more information, contact your DriSteem
representative/distributor, or view the
Drane-kooler product data sheet in the literature
section at www.dristeem.com.
OM-7547
INSTALLATION
Supply water piping may be of any code-approved material (copper, steel,
or plastic). The fi ll valve connection size is a ¼" pipe thread (DN8) fi tting. In
cases where water hammer may be a possibility, consider installing a shock
arrestor. Water pressure must be between 25 psi and 80 psi (175 kPa and
550 kPa).
If water piping to humidifi er is nonmetallic, we recommend that the fi rst 3'
(1 m) of water supply piping from the humidifi er be metallic with a 2" (50 mm)
water seal or loop in the supply line to isolate steam from nonmetallic supply
piping.
Drain piping may be of any code-approved material (copper, steel, or plastic
rated for 212 °F [100 °C] minimum). If drainage by gravity is not possible, use
a reservoir pump rated for 212 °F (100 °C) water.
The fi nal connection size is ¾" (DN20) copper for the tank and frame drains.
Do not reduce this connection size. Pipe the tank and frame drains separately,
as shown in Figures 8-1 and 9-1, to prevent backfl ow of drain water into the
humidifi er cabinet.
If the equivalent length of pipe from the humidifi er drain to the plumbing system
drain is more than 10' (3 m), increase the pipe size to 1¼" (DN32).
See Figures 8-1 and 9-1 for more piping instructions.
Important:
Install unions in the water supply and drain lines as shown in
Figures 8-1 and 9-1 to allow tank removal.
mc_062810_0930-CRUV
CAUTION
Hot discharge water
Discharge water can be as hot as
212 °F (100 °C) and can damage the
drain plumbing.
To prevent such damage from
humidifi ers without water tempering,
allow the tank to cool before draining.
Humidifi ers equipped with a water
tempering device such as a DriSteem
Drane-kooler need fresh make-up
water in order to function properly.
Make sure the water supply to the
water tempering device remains open
during draining.
Excessive supply water pressure
Supply water pressure greater than
80 psi (550 kPa) can cause the
humidifi er to overfl ow.
mc_030910_1440
Supply water and drain piping
Piping:
FIGURE 10-1: DRANE-KOOLER WATER
TEMPERING DEVICE
