NTI INSTALLATION MANUALS

Part 2 - Before You Start

the combustion system. Inside the collection system is a built in trap which seals the combustion system from the connected drain. This condensate should be neutralized to avoid damage to the drainage system or piping. Outdoor Sensor Monitors outdoor temperature and adjusts unit set point to provide greater e ciency. 0-10 Volt Input / 4-20 mA Input (with Optional Analog Clip-In Board, part # 3319457) Allows the installer to connect a BMS (Building Management System) to control the boiler. Condensate Trap The condensate trap prevents condensate and heat exchanger exhaust from backing up into the boiler. Pump Service Mode Allows manual operation of pumps to commission system and check pump operation. Internal By-Pass Valve Protects the boiler from damage in low ow conditions. Internal ECM Pump The internal ECM Pump uses less electricity than standard pumps, providing high performance operation. DHW Temperature Sensor Monitors DHW outlet temperature. The control adjusts boiler ring rate to match the DHW supply temperature to the set point. DHW Flow Meter Monitors DHW ow rate.

B. Optional Equipment Optional equipment available from NTI (and Part #): • 3” PVC Concentric Vent Kit (84634) • 3” PVC Low Pro le Vent Kit (84357) • 2” PVC Low Pro le Vent Kit (85062) • Tank Sensor (84632)

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