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Easy Do-It-Yourself installation
with our Quick Connect
Installing the MRCOOL DIY® does not require specialized tools or
training. However, it does require basic technical skills. You are assuming
the risk by handling materials containing refrigerants under pressure,
that if not handled properly, can cause bodily injury. If you do not feel
comfortable conducting this installation process yourself, we recom-
mend you retain the services of a quali ed HVAC professional.
*Pat. https://mrcool.com/mrcool-patents/
line set*
®
DIY
E Star
®
4th GEN Do-It-Yourself Ductless Mini-Split Heat Pump A/C
SMART CONTROLLER
***************Note****************
This guide is for convenience. Please
refer to the installation manual for
more detailed instructions and
descriptions.
Version Date: 10-14-21
www.mrcool.com
Series
™
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Summary of Contents for MrCool DIY-12-HP-WM-115C25
- Page 1 Quick Connect line set* ® Installing the MRCOOL DIY® does not require specialized tools or training. However, it does require basic technical skills. You are assuming the risk by handling materials containing refrigerants under pressure, that if not handled properly, can cause bodily injury. If you do not feel...
- Page 2 STEP 1 - inside STEP 3 - inside 1. Locate the cardboard wall template. 1. Drill a 3.5 inch diameter hole through the wall, at a slightly downward angle (to ensure proper drainage), to 2. Place the template on the wall at the installation location. accommodate the line set, condensate drain line, and MC cable to the exterior condenser.
- Page 3 Minimum Clearance above unit: 24 in (60 cm) Minimum Clearance on the left side of unit: 12 in (30 cm) Minimum Clearance on the right side of unit: 24 in (60 cm) *Pat. https://mrcool.com/mrcool-patents/...
- Page 4 STEP 5 - Outside STEP 6 - Outside 1. Carefully roll the excess tubing and place it behind the 1. Starting with the top valve, using an open-ended wrench, condenser, lying flat on the ground. or crescent (adjustable-type) wrench, remove the brass cap from the valve on the outside unit.
- Page 5 1. Remove the screws that attach the electrical cover to the STEP 7 - Outside outdoor condenser. WARNING 2. Remove the large retaining nut from the end of the MC Cable coming from the indoor air handler. BEFORE PERFORMING ANY ELECTRICAL WORK, TURN OFF ALL POWER TO THE SYSTEM.
- Page 6 Tape 3. The MRCOOL Series should activate automatically. ® ® Drain hose 4. To use the MRCOOL Smartphone App, refer to the ® keep line excess bundled and coiled Smart Controller Module instructions included in the box. lying flat behind...