Owners Manual

Page 10mrcool.com
No-Vac
®
Quick Connect
®
Line Set* Installation
INSTRUCTIONS FOR USE WITH NO-VAC™ QUICK CONNECT® LINE SET* SOLD SEPARATELY
37 ft/lb
37 ft/lb
52 ft/lb
52 ft/lb
M1
F1
M1 F1
M2
F2
M2 F2
*1
*1
*2
*2
3/8”
3/8”
3/4”
3/4”
Complete unit replacement
using the No-Vac® Quick Connect® lines
Air Handler
Open the stop/cuto
valves only after
connecting the
refrigerant lines
A-coil Precharged
with R-410A Refrigerant
Connect using precharged
line set with quick connect
ttings in length 15, 25, 35, 50 feet
MRCOOL Universal Series
DC Inverter
KINK RESISTANT, PRECHARGED, SIMPLE SECURE QUICK CONNECT, 100% CONNECTION GUARANTEE
www.mrcool.com
v10-25-2021
IMPORTANT
When running the Line Set
through the knockout hole of
the condenser, it may be
necessary to slightly trim the
line set insulation so it feeds
through the hole freely.
Otherwise, it may be difficult
to connect it to the condenser.
Once the installation is
complete, pack the hole with
neoprene to prevent small
animals and insects from
entering the condenser.

*
:
1.
Take out matching male connectors M1 and M2.
2.
DC INVERTER
and ensure the threads are clean and complete.
3.
the M1 connector to the .
the M2 connector to the .
4.
Repeat AIR HANDLER LINE SET.
5.
Unroll and route the LINE SET between the AIR HANDLER and the DC INVERTER. Bend the line



6.

threads are clean and complete.
7.
the LINE SET F1 valve to the M1 Connector 
 . the LINE SET F2 valve to the M2 Connector 
 .
8. Repeat AIR HANDLER LINE SET.

9.
At the the at the and open the
If 
grease or other close the valve and that steps 3 and 7
were done properly. Otherwise
 it indicates there is a
close the valve and that steps 3 and 7 were done

10. the  valve’s and the
M1M2 and F1F2to help 


NOTE ON WRENCHES
The wrench sizes needed for tightening the
No-Vac
®
Quick Connect
®
Line Set are listed
below. However, based on the availability of the
wrench sizes needed, it is recommended to use
two large crescent (adjustable-type) wrenches.
Using one to hold the valve while using the
other wrench to tighten the line set connector.
IMPORTANT
The stop/cutoff valves on the unit must
be opened AFTER connecting the lines
and BEFORE turning on the unit.
Otherwise, operation can cause leakage
and/or damage to the unit.
Piping Size
(Stamped on piping)
Allen/Hex Wrench Sizes Needed
To Open Stop/Cutoff Valves
Wrench Size Required
Standard Metric
Allen Wrench Size
1”3/8”
3/8”
25 mm
1-3/8”3/4”
3/4”
35 mm
5 mm
8 mm
Piping/Valve Size
(Stamped on piping)
Or 2x large crescent (adjustable-type)
wrenches
*Pat. https://mrcool.com/mrcool-patents/
ⱡFailure to follow the instrucons provided could result in severe harm to you, this product, or other property.
The manufacturer, distributor, and seller are not responsible for any harm resulng from the failure to follow
instrucons and the failure to follow these instrucons will void any and all warranes express or implied.