HTP Vision 2 Controller (with Display) - previously used with a Heat Transfer Products (HTP) Munchkin boiler which is finally being replaced. The controller has been "problem free" throughout the years of ownership. I used Zone 1 for domestic hot water and Zones 2 and 3 for radiant heat. Zone 4 was never used. It worked fine in late Oct 2025 when decommissioned. This product is no longer available frome the manufacturer. (Base-1, Rack14)
From the original brochure -
The first truly integrated mixed zone control system that communicates directly to the Munchkin Boiler. Vision 2 is an advanced zone mixing control that is easy to install and operate. Only factory trained contractors are allowed to install Vision 2. Vision 2 is an advanced zone mixing control that is easy to install and operate. Only factory trained contractors are allowed to install Vision 2.
SYSTEM MONITORING SYSTEM MONITORING
- Software is available to monitor system history, fault history, and parameters of up to four individual mixed zones
- Equipped with LED Lights that show an individual display of each zone operation.
- The zone sensor provides a constant temperature feedback to the Vision 2 board. This assures a very controlled delivery to each mixed zone.
SYSTEM FEATURES SYSTEM FEATURES
- The Vision 2 can control up to four mixed zones
- The Vision 2 can be connected to a building management system that supplies a 0–10 volt signal that controls the operational set point of the connected mixed zones
- The Vision 2 can be connected to an outdoor sensor to provide an outdoor reset curve
- Indirect priority function
- Warm weather shutdown
- Can be integrated to the Vision 3 panel to work off of the Munchkin multiple management Vision 3 control
- Post purge circulator function
- The Vision 2 display provides system monitoring
