3
Programming the Controller
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EN-RaychemHWATECOcontroller-IM-H57340 03/13
reprogramming. Once you unlock and reprogram,
you will need to relock by entering your password.
If Lock is On, the Setup and Timer menus are pro-
tected by the password. After you enter the pass-
word, the controller remains unlocked until five
minutes of key inactivity or until you select Lock ‘On’
again.
6. Building Management System (BMS)
You can activate the Building Management System
option using this menu. When set to “Yes” the control-
ler responds only to the voltage applied to the BMS
terminal. For voltages ≤ 4 Vdc: heating cable is OFF.
For voltages between 4.1 Vdc and 6.4 Vdc: maintain
temperatures are set as indicated in Table 5. For
voltages > 6.4 Vdc: 100% power is applied to the
heating cable. See "Building Management System
(BMS) (optional)" on page 22 for installation infor-
mation. If Water heater is ON, it overrules the BMS
temperature setting if necessary.
