Install Instructions

ManualsBrandsMcdonnell & Miller ManualsHeating SuppliesTest-N-Check Blow Down Valve (TC-4)

Model TC-4

Test-N-Check

Valves

For Hot Water Boilers

• 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.

• To prevent serious burns, the boiler must be cooled to 80˚F (27˚C) and the pressure must be

0 psi (0 bar) before servicing.

• To prevent serious personal injury from steam blow-down, connect a drain pipe to the control

opening to avoid exposure to steam discharge.

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

WARNING

TC-U Upper Valve TC-L Lower Valve

Applications:

For isolation of equalizing lines during low

water cut-off testing.

Does in minutes what used to

take hours.

OPERATION

Maximum Operating Pressure: 160 psi (11 kg/cm

)

Maximum Operating Temperature: 250˚F (121˚C)

McDonnell & Miller

Installation & Maintenance

Instructions

MM-802(D)

Summary of content (4 pages)

PAGE 1
McDonnell & Miller Installation & Maintenance Instructions MM-802(D) Model TC-4 Test-N-Check® Valves For Hot Water Boilers ® Does in minutes what used to take hours. TC-U Upper Valve Applications: For isolation of equalizing lines during low water cut-off testing. TC-L Lower Valve OPERATION Maximum Operating Pressure: 160 psi (11 kg/cm2) Maximum Operating Temperature: 250˚F (121˚C) ! WARNING CAUT WARN ION ING • Before using this product read and understand instructions.
PAGE 2
TEST-N-CHECK® VALVES Simplify Testing of Low Water Cut-offs on Hot Water Boilers Installation of the TC-4 Test-N-Check Valve with an Existing Low Water Cut-off 1. Remove the existing low water cut-off by disconnecting the unions in the equalizing lines. 2. Remove the crosses from the upper and lower equalizing lines. 3. Assemble the TC-U (the upper Test-N-Check valve, with the vacuum breaker) into the upper equalizing line replacing the cross.
PAGE 3
TEST-N-CHECK® VALVES Simplify Testing of Low Water Cut-offs on Hot Water Boilers Installation of the TC-4 Test-N-Check Valves with a New Low Water Cut-off 1. Assemble the TC-U (the upper Test-N-Check valve, with the vacuum breaker) into the upper equalizing line in place of the cross described in the low water cut-off installation instructions. NOTE: The vacuum breaker must be on the top and the long leg must face the boiler.
PAGE 4
McDonnell & Miller ITT 8200 N. Austin Ave. Morton Grove, IL 60053 tel: 847-966-3700 fax: 847-966-9052 www.mcdonnellmiller.com ©2007 ITT Corporation Printed in U.S.A.