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Need help?Do you have a question about the HydroTherm HV-125 and is the answer not in the manual?
This manual must be read and fully understood before installing, operating or servicing this boiler!
These instructions cover the HV gas fired, induced draft low pressure, sectional, cast iron hot water boiler.
Each unit has been constructed and hydrostatically tested for a maximum working pressure of 50 psi...
Check the boiler rating plate to ensure that the boiler is the proper size for the job. Locate the boiler in an area that provides good access.
If a HV boiler is to be installed on combustible flooring of any type, it MUST be installed using the special base designed by Hydrotherm.
To order the Special Base contact the nearest Hydrotherm distributor and ask for the 'Noncombustible Floor Pan' part number.
This boiler must be supplied with combustion air in accordance with Section 5.3, Air for Combustion & Ventilation...
Do not connect this boiler or any other appliance using a mechanical draft system under positive pressure to a common vent system!
This boiler must be vented in accordance with Part 7, Venting of Equipment... Improper venting can result in excessive levels of carbon monoxide...
Use Type B1 or single wall metal vent pipe from the boiler to the chimney. Ensure minimum clearances are maintained.
The boiler may be vented vertically using the proper size Type B1 vent pipe. Ensure proper support and termination.
Horizontal vent systems must be in compliance with UL 1738. Maintain proper length, slope, and termination clearances.
All heating system piping must be installed in accordance with the ANSI/ASME Boiler and Pressure Vessel Code...
An additional circulator can provide return water blend. Reverse acting aquastat works best in single zone systems.
The boiler, when used with a refrigeration system, must be installed with chilled medium piped in parallel.
The TACO 007 circulator is sized for closed systems. All gas piping must be installed by a qualified technician.
Electrical connections must comply with local codes and the National Electrical Code. Install a separate 120 volt 15 amp circuit.
Follow thermostat instructions for proper location. Installers must follow local regulations for CO detectors.
Failure to follow instructions risks fire/explosion. What to do if you smell gas: do not light, call supplier.
Direct ignition startup is automatic. Procedures for turning off gas supply are provided.
Before starting, turn off electrical supply. Fill boiler and radiation, purging all air.
Read operating instructions carefully. Follow emergency actions for overheating/gas failure. Test ignition system.
Adjust gas pressure to specified manifold pressure. Calculate and adjust input rate based on altitude and gas heating value.
Check for proper flame, low water cutoff operation, and adjust thermostat anticipator for optimal performance.
WARNING: Silica fibers in burner chamber. Use dust mask. Follow burner removal and installation steps.
Clean heat exchanger passages. Inspect vent system annually for blockages, corrosion, or leaks.
Check thermostat, L.W.C.O., relief valve, and aquastat. Installer must educate owner on operation and safety.
Appliance produces CO, a toxic gas. Recognize symptoms and signs of poisoning. Have system tuned up annually.
Reduce CO risk by regular tune-ups and vent pipe checks. Only qualified, licensed contractors should service the boiler.
General| Brand | HydroTherm |
|---|---|
| Model | HV-125 |
| Category | Boiler |
| Language | English |
