IBC VFC 15-150 Manual

Also see for VFC 15-150: Installation and operating instructions Operating instructions manual

IBC VFC 15-150 Manual Manual pdf 32 page image

INSTALLATION AND OPERATION INSTRUCTIONS1-28VFC 15-150 - VFC 45-225 MODULATING GAS bOILERSNOTE: sensors connected to any sensor input contacts must be of ntCThermister - type with a resistance of 10,000 ohms at 25°C and β = 3892. We donot recommend using 3rd party supplied sensors. Compatible water temperaturesensors and outdoor sensors can be supplied by your iBC distributor.1.8.6 Thermostat Heat AnticipatoriBC “therm.” contacts draw no power, so an anticipator setting for the thermostatis not applicable with the VFC modulating series boilers. in the case of a singletemperature / heat load where zone valves are used to manage individualthermostatically controlled zones, each room thermostat’s heat anticipator shouldbe adjusted to the current draw of its associated zone valve.Figure 29: Electrical Wiring Connections (full page ladder diagram at back of this manual)A 2.5 mm Slot screwdriver isrequired for the bottom terminalstrip. Broader or narrower bladesmay damage the terminal screws.