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General| Material | Stainless steel |
|---|---|
| Steam Pressure | 15 to 150 psi |
| Water Temperature Control | Electronic |
| Application | Commercial and industrial water heating |
| Maximum Working Pressure | 150 psi |
| Maximum Working Temperature | 210°F |
Confirm product suitability for intended application based on manual, name-plate and technical sheet.
Ensure safe access and working platform, arrange suitable lifting gear if required.
Ensure adequate lighting, especially for detailed or intricate work.
Consider pipeline contents: flammables, health hazards, temperature extremes.
Consider explosion risk, oxygen deficiency, dangerous gases, temperature, fire, noise, machinery.
Assess system impact of proposed actions; ensure no personnel or system parts are at risk.
Isolate pressure safely, vent, consider double isolation and valve locking/labelling.
Allow time for temperature to normalize after isolation to prevent burns.
Ensure suitable tools and consumables are available; use genuine Spirax Sarco parts.
Consider protective clothing for hazards like chemicals, temperature, radiation, noise, falling objects.
Ensure work is supervised by competent person; comply with permit-to-work systems.
Assess risks for manual handling of heavy products and use appropriate methods.
Heater can be wall/floor mounted or ceiling suspended, requiring 3' clearance from floor for connections.
Steam trap should discharge to 0 psig. Use automatic pump trap if condensate lift or back pressure is needed.
Install PRV at 75 PSIG (RH-30/60) or 50 PSIG (RH-90/120) if steam pressure may exceed limits.
Heater has integral relief valve for excess water pressure due to thermal expansion.
Install temperature gauge in the hot water outlet piping.
Install pressure gauge and pigtail on steam supply line, near the heat exchanger.
Standard steam pressure is 15 PSIG or less; set PRV at 15 PSIG if furnished.
Water pressure must exceed steam pressure by 15 PSI for proper operation.
Check tightness of all connections.
Install a drain/test valve near the heater to assist with initial temperature adjustment.
Procedure for checking joints, setting temperature, and adjusting the blending valve for stable output.
Step-by-step procedure for disassembling the blending valve for inspection and repair.
Procedure for re-assembling the blending valve after maintenance or repair.
Procedure for accessing and inspecting the heat exchanger coil without disturbing piping.
Procedure for re-assembling the heat exchanger coil and manifolds after inspection or cleaning.
Diagnosing and resolving issues where the water temperature exceeds the set point.
Diagnosing and resolving issues where the water temperature is below the set point.
Troubleshooting steps when the heat exchanger is identified as the cause of temperature issues.
Troubleshooting steps when the blending valve is identified as the cause of temperature issues.
Diagnosing and resolving issues related to restricted water flow within the system.
Using heat tape to prevent heat loss in piping for instantaneous hot water delivery.
A single line system with a thermostatic bleed valve to maintain line temperature.
System using a circulating pump and fixed thermostat diverting valve for loop temperature control.
System using a circulating pump and adjustable thermostat diverting valve for flexible temperature control.
Information required for ordering spare parts, including contact details and essential identification data.
