DS-AFX AutoFlush - Installation and Operation Guide
Designed For Installation With All Desert Spring Rotary Disc Humidifier Models.
COMPONENTS INCLUDED
1- AutoFlush Timer/Pump
8 ft. – 3/8” Drain Hose
1 – 24VAC Plug-in Transformer 1- Vortex Inhibitor - (Blue Plastic)
1- Brass adapter
1-3/8” Plastic Tee 1 - Tie wrap
If you discover missing or damaged components, please call us toll free at 1-888-486-4324 or email
us at info@desertspringproducts.com.
REQUIRED TOOLS
Cutting Tool
CAUTION:
This device requires a floor drain or must be used in conjunction with a condensate pump.
This product is designed only for the intended use as outlined in the manufacturer’s
instructions.
WARNING:
SHUT OFF THE WATER SUPPLY TO YOUR HUMIDIFIER BEFORE
INSTALLING THE AUTOFLUSH SYSTEM. ALL PLUMBING AND ELECTRICAL
CONNECTIONS MUST CONFORM TO LOCAL CODES.
NOTE:
You will require a 110/120-volt outlet within 6 feet of the unit.
INSTALLATION INSTRUCTIONS
STEP 1
STEP 2
SEASON END MAINTENANCE
Turn OFF the water supply to the humidifier. Turn the humidistat setting to OFF. Press Function button for 4
seconds to drain water from the humidifier basin. Once the system is completely drained, unplug the Auto Flush
transformer from the wall outlet or switch to Summer mode (Also see Humidifier Manual).
WARRANTY
Desert Spring Eco-Products Ltd. guarantees the Desert Spring AutoFlush drain system for one (1)
year from date of original purchase against defects in workmanship and/or materials. This warranty
is void if the unit is damaged by careless handling, improper use, non-standard operating
conditions, improper maintenance, unauthorized repairs or if the product has been tampered with.
This warranty is limited to repair or replacement of the AutoFlush unit at the discretion of the
manufacturer. No other warranty is offered or implied. This warranty is not transferable. A receipt
of purchase or record of installation must accompany all warranty claims.
POWER FAILURE
In the event of a power failure, the timer is reset when in winter mode.
THANK YOU FOR CHOOSING DESERT SPRING ECO-PRODUCTS
Head Office:
Desert Spring Eco-Products
6350 Tomken Rd., Unit 4
Mississauga, Ontario
Canada L5T 1Y3
Telephone:
(888) HUMID-24 / (888) 486-4324
(905) 629-2010
Fax:
(905) 629-2810
Internet:
Web site:
http://desertspringproducts.com
Email:
info@ desertspringproducts.com
DISCLAIMER
Except as expressly stated in this manual, Desert Spring Eco-Products Limited makes no representation or warranty with
respect to the AutoFlush unit and disclaims all implied warranties including any warranty of merchantability or fitness
for a particular purpose. In no event will Desert Spring Eco-Products Limited be liable to any customer or user of the
humidifier for any indirect, incidental, or consequential damages or loss of revenues or profits, whether the same are
foreseeable or not, occasioned by any cause whatsoever including, but not limited to, the installation or operation of this
AutoFlush unit. © 2012
STEP 8
USING THE AUXILIARY POWER SOURCE
The DS-AFX timer is equipped with an auxiallry power supply that can be used to power the humidifier
motor. To connect the motor to this power source use the following instructions.
1. Disconnect old power source/wiring from humidifier motor, if applicable.
2. Run 18/22 gauge wire from one side of the power source to one leg of the humidistat. (Wire not supplied)
3. Run 18/22 gauge wire from second side of power source to one leg of the motor.
4. Connect the second leg of the motor to the second leg on the humidistat.
Note: Because power is 24VAC it does not matter which leg of humidistat /motor is connected to the
power supply.
NOTE: Before installing AutoFlush, thoroughly inspect humidifier basin and disc wheel.
Remove all scale and other debris that may clog-up AutoFlush pump and prevent a proper drain.
Turn water supply on, fill humidifier basin and check all connections for leaks.
STEP 9
Insert transformer connector to AutoFlush and plug-in transformer to nearest 110/120V outlet.
The centre, green LED with light in the factory default ’24-hour’ position will light.
OPERATING INSTRUCTIONS
1.
Testing the Pump
Press and hold the function button for 4 seconds and release. The AutoFlush pump will energize
for 45 seconds and automatically stop. Check water flow for blockage. After flush cycle has ended,
ensure water stops flowing from drain tube (see Note under Installation Step 5). The timer will start
count-down as per interval time setting for next flush cycle.
2.
Adjusting the Interval Time
The flush cycle defaults to 24 hours when power is brought to the unit. To change the time interval,
quickly press and release the function button to cycle through the other timer options.
NOTE: In the factory setting, a normal flush cycle drains approximately 1 gallon/4 litres per day,
which ensures the basin water is refreshed daily and scale is removed before it can accumulate to
significant levels. The amount of scale formation depends on local water quality and the amount
of daily evaporation in the humidifier. If clogging from scale is encountered, select the 12 hour
interval. Alternatively, if scaling is minimal, the 48 hour may be selected.
3.
Selecting Winter/Summer Mode
The AutoFlush defaults to winter mode when power is brought to the unit. This is the normal
operating mode. If there is a power failure in winter-mode, the timer remembers its selected
interval time, but the count-down will reset from the resumption of power. To stop the timer
function during the summer shut down, disconnect the power, or press and hold function button
for 10 seconds and release. This turns the LED light off and the timer function is disabled. The unit
will not reset from a power failure event. To switch back to winter mode, press and hold the function
button for 10 seconds and release.
Figure 1.
STEP 5
STEP 6
Ensure humidifier drain is properly secured to the humidifier basin. Remove cap from bottom of
drain (if necessary) and apply Teflon tape to threaded section of drain. Attach the AutoFlush pump
unit to drain and hand tighten so that the 3/8” tube extends from the right hand side.
Loop the tube to form a reverse U-trap as shown in Figure 3 and attach to one of the barb sides of
the plastic tee. This is critical in order to form a trap to prevent a siphon forming.
Now attach the 8’ section of 3/8” tubing to the other barb on the tee and run it to the floor drain or
condensate pump. Trim the excess drain tube as required. If running into a pipe drain ensure no
more than 6” extends into the drain, secure the end so it will not come loose. Drain tube must not
be kinked, or come in contact with sharp edges and/or hot surfaces.
Shut off the water supply to your humidifier and drain the basin if necessary.
Locate the overflow knock-out below the float opening on the right in-side of the humidifier basin.
Using a screwdriver and hammer, tap the plastic knock-out. Run the edge of the screw driver
around the opening to remove any excess material.
STEP 3
STEP 4
Using a 9/16” wrench thread the brass adapter into the overflow opening in the basin as far as it will
go. (Figure 1). Apply teflon tape to the threaded part of the plastic tee, then thread the tee into
the brass adapter. (Figure 2)
Using the tie-wrap provided, secure the trap as shown in Figure 3. This will ensure that the trap
is maintained.
STEP 7
Insert the Vortex Inhibitor into the drain on the inside of the basin. This reduces the pump pulling
air through the drain and ensures a proper drain of the basin water.
Brass Adapter
(Use to tap the kocked
out opening)
Figure 3.
Figure 2.
Tee
Fitting
Reverse U-Trap
Tie-Wrap
To Floor Drain
NOTE: The AutoFlush pump unit does not contain a shut-off valve, so it is important to form a
proper ‘trap’ in the drain line to prevent continuous water draining from humidifier.
