McQuay MHW Geothermal Ran Manual de instalación descargar pdf (Pagina 9)

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Water Connections

Allpipingconnectionsshouldbemadeusinggoodplumbing

practices and in accordance with any and all local codes that

may apply.

Note: On left-hand piping units the water supply connection

is on the top. Right hand piping units the water supply

is at the bottom location.

Unit Piping Connection

Eachheatpumpissuppliedwithextendedcoppertubingon

thewater-to-refrigerantcoiland5/8"(16mm)O.D.tubing.

Theconnectionsareforboththesupplyandreturnwater

connections. See Figure 5 for left and right hand connections

locatons.

Shutoff/Balancing Valve Piping

Eachheatpumprequiresashutoffvalveonboththesup-

plyandreturnlinesforeasyserviceabilityandremovalifit

becomesnecessary.

Wesuggestusingourcombinationshutoff/balancingvalves

installedintheeldbetweenthecontractor’spipingandthe

heat pump unit. The valve installed on the return line acts as a

balancingvalvetoadjusttheproperwaterow.Anautomatic

owlimitingdeviceisalsoavailableasafactoryinstalled

option.

Eachshutoff/balancingvalvehas1/2"FPTand1/2"FPT

threaded connections.

Attachtheeldinstalledcombinationshut/offbalancing

valvetothebuildingwatersupplyandreturnpiping.

Add the female pipe adapter connection to unit supply and

returncoilconnectionbysweatingtheminplaceusingsilver

solder.

Usingthespeciedhoses,screwthexedendintotheshut-

off/balancingvalve.Removethe1/2"adapterfromtheother

endofthehose.Inserttheadapterintothefemaletting.

Using two crescent wrenches, one to hold the pipe connection

and the second to tighten the adapter, insert the swivel end of

the hose on the adapter and tighten. This completes the hose

connection to standard heat pump equipment.)

Figure 5: Supply and Return Connections Locations for Left- Hand and Right Hand Units (Flat Top and Slope Top)

Right-Hand Piping View

Left-Hand Piping View

IMPORTANT

On left-hand piping units the water sup-

ply connection is on the top. Right-hand

piping units the water supply is at the bot-

tom location.

Table 1: Dimensions (High Sill Units)

Unit Size J K L M P Q R S

007-018

6⅞" 5

" 6¾" 3½" 10¼" 1

" 5¼" 7½"

(175mm) (132mm) (172mm) (90mm) (260mm) (41mm) (134mm) (192mm)

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 37 38

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