LAARS - MINI-THERM, JVS - Residential - Hydronic Boilers Extremely popular with homeowners, the JVS model offers a new attractive and easy-to service jacket. Well-known for its economy, the Mini-Therm has a built-in draft diverter and automatic vent damper to stop your valuable fuel payments from disappearing up the chimney in wasted heat.
Standard Equipment • PI Controller • Outdoor reset with ratios of 0.4 to 3.6 • Warm Weather Shutdown (WWSD) • Domestic Hot Water Operation (DHW) • Indicator lights for power, heat call, DHW call and WWSD • Automatic boiler differential • Pump pre-purge, post-purge and excercise • Codes for sensor errors • Venting: built-in draft diverter • Design certified/tested by CSA International • Natural or propane gas • Maximum working pressure: water 30 P.S.I., ASME rated • Hydrostatic test pressure at factory: 60 P.S.I. • 30 psi ASME pressure relief valve • Maximum gas supply pressure: Natural 10.5" W.C.; Propane 13" W.C. • Pressure relief valve: capacity in excess of boiler input rating • Material specifications per Section IV, ASME Code • Headers: cast iron per ASME requirements • Tubes: copper with integral formed external fins • Main burners: aluminized steel • Air supply: natural aspiration • Altitudes: 0–10,000 ft. • Spark to pilot ignition • Electrical: 115V-60Hz-1PH less than 12 Amps 24V transformer mounted and wired • Pump relay: standard • Vent damper and wire harness • Blocked vent safety switch (B.V.S.S.) • Flame rollout safety switch • Up to 85% AFUE