Tekmar, Control Systems, models:

One Stage Boiler Control 253	Data Brochure
Pump Sequencer 132	Data Brochure
Universal Reset Control 363	Data Brochure
Zone Control 367	Data Brochure
Zone Control 369	Data Brochure
tN2 house control 400	Installation And Operation Manual
tekmarNet 2 House Control 403	Quick Setup Manual