E-Tech WH-35, Instruction Manual

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CLEANING INTERNAL INSULATION
Inspect the internal insulation on a yearly basis for any microbial
growth. The insulation never has to be cleaned unless microbial
growth is detected. If microbial growth is detected, follow the
removal steps below:
1. Disconnect all power to the unit and follow the prescribed
lock-out/tag-out procedure.
2. Wear the prescribed personal protective equipment
prescribed from the cleaning product instructions.
3. Remove as much dirt and organic material from the insulation
using a vacuum device with a HEPA filter (99.97% efficient
at 0.3 micron particles). Be careful not to tear the insulation
during the cleaning procedure.
4. Apply the microbial cleaning agent as prescribed by the
application and usage instructions.
5. Allow the unit to dry thoroughly.
6. If necessary, apply an anti-microbial agent on the insulation
per the instructions provided on the product label.
7. Discard collected microbial contaminants as required by
local or state codes.
BRAZE PLATE CLEANING INSTRUCTIONS
In some applications the heat exchanger may be subjected to
severe fluid conditions, including high temperture hard water
conditions, causing accelerated scaling and corrosion rates, and
will diminish performance.
It is important to establish regular cleaning schedules, A 5%
solution of Phosphoric Acid or Oxalic Acid may be considered.
Other types of solutions can be obtained from your local
wholesaler. Make sure cleaning solution is applicable for stainless
steel and copper and all directions are followed.
Do not heat solution. Be sure to flush heat exchanger with fresh
water after cleaning. See Figure 22.
Figure 12