Delayed Interlock Test - Watts AERCO Benchmark BMK750 Operation And Service Manual
With edge (i) controller
Hide thumbs
Also See for AERCO Benchmark BMK750:
- Operation and service manual (213 pages) ,
- Installation and start-up manual (62 pages) ,
- Design manual (12 pages)
Table of Contents
Advertisement
Benchmark with Edge [I]: Operation-Maintenance Manual
SECTION 5 – SAFETY DEVICE TESTING
Delayed Interlock Test
5.6.2
Delayed Interlock Test Instructions
1. Remove the cover from the I/O Box and locate the DELAYED INTL'K IN terminals.
2. On the Controller, go to:
Manual Run control.
3. Set the valve position between 25% and 30% using the + (Plus) and – (Minus) controls.
4. If there is a jumper across the DELAYED INTL'K IN terminals, remove one side of the
jumper. If the interlock is connected to a proving switch of an external device, disconnect
one of the wires leading to the proving switch.
5. The unit should shut down and display a Delayed Interlock Open fault message. The
FAULT LED should be flashing.
6. Reconnect the wire or jumper removed in step 5 to restore the interlock.
7. Press the CLEAR button to reset the fault
8. The unit should start.
OMM-0145_A99 • GF-218 •
Main Menu → Diagnostics → Manual
Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST
9/18/2019
Mode, then enable the
Page 87 of 157
Advertisement
Table of Contents
