Install Instructions
25A Make-Up Water Feeder
For Receiving Tanks
For Residential and Commercial Applications
Series 25A
OPERATION
Maximum Body Pressure: 35 psi
Maximum Water Supply Pressure: 100 psi
INSTALLATION –
TOOLS NEEDED:
Two (2) pipe wrenches, pipe dope, assorted fittings and lengths of 1” pipe.
PUMP
DISCHARGE
FEED PUMP
RECEIVER TANK
BLOW-OFF
VALVES
STRAINER
BASKET ASS’Y
OUT
CONDENSATE
RETURN
VENT
CHECK VALVE
BY PASS
3
/4’’ PIPE
IN
WATER SUPPLY
DISCHARGE
2/3
1/3
a. The feeder is usually mounted one-
third (1/3) of the way up from the
bottom of the tank. This provides two-
thirds (2/3) of the tank for return
condensate.
STEP 1 - Determine Location of the Feeder
• Before using this product read and understand instructions.
• Save these instructions for future reference.
• All work must be performed by qualified personnel trained in the proper application, instal-
lation, and maintenance of plumbing, steam, and electrical equipment and/or systems in
accordance with all applicable codes and ordinances.
• Drain water level down below feeder and let cool to 80˚F (27˚C) before servicing.
• If tank or receiver is pressurized relieve pressure to 0 psi (0 Bar) before servicing.
Failure to follow this warning could cause property damage, personal injury or death.
WARNING
CAUTION
!
WARNING
McDonnell & Miller
Installation & Maintenance
Instructions
MM-318(A)