Install Instructions

ManualsBrandsMcdonnell & Miller ManualsHeating Supplies847-C-2, Make-Up Water Feeder w/ No. 2 Switch, w/ Alternate Valve Orientation

Series 851, 851-S and 847

Make-Up Water Feeders

• Before using this product read and understand the installation instructions.

• Save the installation instructions and these maintenance and replacement instructions

for future reference.

• All work must be performed by qualified personnel trained in the proper application, instal-

lation, inspection, and maintenance of HVAC systems in accordance with all applicable

codes and ordinances.

Failure to follow this warning could cause property damage, personal injury or death.

ARNING

CAUTION

WARNING

Series 851

Series 847

Series 851-S

Applications:

For receiver tanks in industrial or

commercial applications.

McDonnell & Miller

Installation & Maintenance

Instructions

MM-320(A)

Summary of content (4 pages)

PAGE 1
McDonnell & Miller Installation & Maintenance Instructions MM-320(A) Series 851, 851-S and 847 Make-Up Water Feeders Applications: For receiver tanks in industrial or commercial applications. Series 851 Series 851-S Series 847 ! WARNING ION CAUT ING WARN • Before using this product read and understand the installation instructions. • Save the installation instructions and these maintenance and replacement instructions for future reference.
PAGE 2
Capacities Series 847 BOILER BOILER Btu/Hr. hp (K-Calories/Hr.) (Kilowatts) STEAM Sq. Ft. (kg/hr.) lbs./hr. (1814) 4,000 (1361) 3,000 (907) 2,000 (454) 1,000 (0) m imu Max y Capacit 0 psi 0 (kg/cm2) (0) 10 (.7) a C ap c ity at Switch 16,000 4,000,000 (15,800) 116 (1137) 12,000 3,000,000 (11,900) 87 (853) 8,000 2,000,000 (7,900) 58 (569) 4,000 1,000,000 (4,000) 29 (284) 0 0 0 Cut-Off 20 30 40 50 60 70 80 90 100 (1.4) (2.1) (2.8) (3.5) (4.2) (4.9) (5.6) (6.3) (7.
PAGE 3
TOOLS NEEDED: One (1) pipe wrench and one (1) socket wrench. INSTALLATION – STEP 1 - Preparation Drain the water in the receiving tank to a level which is below the control opening (A). Allow the boiler to cool to 80˚F (27˚C) and allow the pressure to release to 0 psi (0 bar). A STEP 2 - Install the Control Unit Use a socket wrench to secure the feeder (D) to the receiver tank with the six 3/8” - 16 bolts through mounting flange (C) and tighten to 18 ft•lb (24 N•m).
PAGE 4
McDonnell & Miller STEP 3 - Install the Piping Piping the Valve on Series 847 and 851 a. Follow the drawing to the right for piping the valve to boiler and city water supply. When piping the valve remember to leave room for servicing the valve. This will aid in troubleshooting the valve and piping in the future.