DC1100 / DC1400 Boiler output does not energize during HWS time schedule ON periods

[Product_Support]

Issue

DC1100 / DC1400 Boiler output does not energize during HWS time schedule ON periods

Environment

DC1100 / DC1400 Discrete Controller installations.

Cause

DC1100 / DC1400 HWS time schedule is not Boiler Linked.

Resolution

Please check the catalog for current equipment

1. Check Hot Water Link Option is set to Boiler Linked by following Controller access procedure :-
   • Override Setting Switch :- select SET position.
   • Display Screen / Navigation Buttons :- select parameters
   • SYSTEMS MENU / ALTER SETTINGS / ENTER PASS No. (0112)
   • HOT WATER / LINK OPTION
2. Check LINK OPTION setting
   • If LINK OPTION is set to INDEPENDENT then amend to BOILER LINKED
   • If LINK OPTION is set to BOILER LINKED then PUMP RUN ON may be active
   • If PUMP RUN ON  is active then Boiler outputs will be disabled until PUMP RUN time expires
3. To amend PUMP RUN ON time :- select parameters
   • SYSTEMS MENU / ALTER SETTINGS / ENTER PASS No. (0112)
   • COMPENSATOR / SET-UP MENU / PUMP RUN-ON
   • Amend Pump Run-On time period to 1 MINUTE and observe
   • BOILER No.1 LED status should change from OFF to ON
   • DC1100 / DC1400 Boiler No. 1 output (Terminal 10) should now be energised.