CALEFACTIO GMP Manuel - Page 3

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WARNING
To change the GMP discharge pressure to the system, adjust only the pressure reducing valve (10 to 70 PSI).
PRESSURE REDUCING VALVE ADJUSTMENT
The Pressure Reducing Valve (PRV) is factory set for a unit discharge pressure of 12 psig. If a different discharge pres-
sure is required, adjust the PRV as follows.
A.
INCREASING THE PRV DISCHARGE PRESSURE.
1.
With the GMP unit operating, close the GMP's isolation valve (7).
2.
Loosen the Iock nut on the PRV adjustment screw.
3.
White observing the GMP's discharge pressure gauge, turn the PRV adjustment screw in a clockwise direction
until the desired operating pressure is achieved.
4.
While holding the PRV adjustment screw in ils new set position, tighten the Iock nul.
5.
Return the isolation valve to its full open position.
B.
DECREASING THE PRV DISCHARGE PRESSURE.
1.
Open the system relief valve to obtain a lower pressure than the one desired, do the steps men
"A".
Part No.
GMP-DEMAR-12
GMP-DEMAR-13
GMP-PRV
GMPFYG2J25
Quebec • (Canada)
T 450 951.0818
F 450 951.2165
calefactio.com
Item
Magnetic Starter 1/2
Magnetic Starter 1/3 HP
Pressure Reducing Valve
HP Pressure Switch
INSTALLATION AND OPERATION
PART LIST
Part No.
GMP-HGT15
GMP-PROCON
GMP-806
GMP-871
GMPTANK100
GMPTANK50
t
ioned in section
Item
Pressure Tank
Pump Only
1/3 HP Motor
112 HP Motor
100 Gal. Solution Tank
50 Gal. Solution Tank