© 2017 PoolPak LLC. All rights reserved. MPK Series - Installation, Operation and Maintenance | 83
PoolPak
®
MPK Series IOM
• Pool Water Temperature
• Pool Water pH
• Pool Water Free Chlorine
• Pool Water Total Chlorine
8. DAMPER OPERATION: Ensure that dampers open and close fully without binding.
Semi-Annual Maintenance
In addition to the Monthly Maintenance items, the following should be performed on a semi-annual basis:
Condenser coil cleaning:
• PoolPak recommends that the finned surface of all integral condenser coils be cleaned approximately every six
months. More frequent cleaning may be required if extreme conditions cause clogging or fouling of air passages
through the coil.
• Calgon Corporation’s CalClean 41352 (or equal) is acceptable for cleaning this unit.
• The cleaning solution should be applied liberally to entering air and leaving air surfaces of the coil in
accordance with the cleaning solution instructions.
• For a unit specific coil cleaning procedure, please see the Maintenance Section under Parts & Service
Downloads on the PoolPak website, www.poolpak.com
• Note: For non-coated copper coils, if you notice the coil surface turning green, you have a problem with pool
water chemistry. Address this root issue before seeking out more destructive coil cleaning solutions to remove the
green from the coil.
Annual Maintenance
Perform the following on an annual basis:
1. All items listed under MONTHLY MAINTENANCE and SEMI-ANNUAL MAINTENANCE.
2. COMPRESSOR AND REFRIGERATION SYSTEM: The compressor and refrigeration system should be inspected
annually by a qualified service technician. At minimum, the following items should be done:
• Change and inspect the refrigerant filter drier (only if the system has been open).
• Complete unit operation test including log entries.
• Inspect fan motor bearings for excessive wear and replace if necessary.
• General refrigeration system inspection for possible leaks, chafing between tubing, or other items detrimental
to operation.
• Touch up scratches in the paint.
• Check electrical connections for tightness including those in the compressor electrical box.
• Clean debris and dirt from drain pans.
3. Variable Frequency Drives (D cabinet models only): Although typically seen as being maintenance free, there is
some simple maintenance that can be done on a regular basis for VFD. The main goal of VFD maintenance is to
keep it clean, keep it dry, and keep the connections tight. The below are the general PoolPak recommended tips
for maintaining your VFD. These should be done annually by a qualified service technician.
• Check the control cabinet for any signs of moisture. If present, the cabinet joints should be re-sealed with
PoolPak approved silicone sealant.
• With the power off, spray dry, oil-free air over the heat sink fan(s) to remove dust.
• With the power off, carefully remove the cover and visually check for any internal damaged components.
• Use a dry dust-catching fabric (such as Swiffer® cloths) on the outside and inside of the VFD cabinet to
remove dust and debris.
• With the cover carefully removed, check all electrical connections on each VFD for tightness. A simple “tug”
test should be sufficient. Tighten any loose connections. Re-install the cover.
For additional description of advanced VFD maintenance tips, see PoolPak Parts & Service article “How to Maintain
a VFD”.
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