SECTION THREE: USING YOUR CLEANING SYSTEM
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108268/49-053 Rev M LEGEND BRANDS MODEL APEX 570
FREEZE PROTECTION / DESCALING
If the unit is exposed to freezing weather conditions, the water inside of the unit may freeze, resulting in SERIOUS
DAMAGE to the unit. The following is recommended to prevent this from occurring during the cold weather season:
1. Always park the unit in a heated building when not in use.
2. While out in operation, avoid long periods of shut down as the unit generates heat while running. Keep the unit
running just prior to leaving for the next job.
3. If a heated building is not available, winterize the unit with anti-freeze.
It is not possible to winterize units that have auxiliary water tanks. If the unit has an auxiliary water tank(s), it must be
stored in a heated building.
Hard water deposits will damage the plumbing and heat exchange systems on this unit if not maintained. Legend Brands
recommends using a high quality water softener with a minimum flow capacity of 5 GPM in areas where hard water
exceeds 3.5 grains. Descaling the unit every three to six months will help prevent calcium deposits or scale build-up in
your system. The process for descaling your unit is almost identical to winterizing and are integrated below.
WINTERIZING AND DESCALING YOUR UNIT
1.
Disconnect your water supply. If you have an on-board water supply, fully drain it when your unit is down for
long periods.
2.
Run the unit on low to extract as much water as possible. This can be done through the bypass valve or an
open-ended hose connected to the solution outlet. Turn the unit off.
3.
Add one gallon
of a minimum dilution of 50/50 or 100% glycol based anti-freeze or descaler (follow directions on
the bottle of descaling agent of your choice for exact amounts) directly to the water box. On pressurized
systems, remove the radiator cap to fill.
4.
Create a loop with a winterizing hose by connecting one end to the water inlet and the other end to the solution
outlet on the front of the unit. You can purchase a pre-assembled winterizing hose from Legend Brands, part
number 68-
168. Alternatively, you can make a short hose with 1/4” male quick connect to a 3/4” male quick
connect.
Summary of Contents for APEX 570
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