This document is an installation and operation manual for Atlantic STEATITE Premium Series Mains Pressure Electric Storage Water Heaters, designed for indoor installation only in New Zealand.
Function Description:
The Atlantic STEATITE electric storage water heater is designed to provide abundant hot water efficiently and reliably for many years. It is a mains pressure system, meaning it can deliver hot water at a pressure comparable to the cold water supply. The STEATITE technology likely refers to a specific type of heating element or tank lining that enhances durability and efficiency, particularly in areas with hard water. The system includes various safety devices and requires specific hydraulic and electrical connections to ensure safe and proper operation.
Important Technical Specifications:
The manual lists four models with varying capacities:
- MODEL 876302: 150 Litre
- MODEL 886089: 200 Litre
- MODEL 886090: 250 Litre
- MODEL 896236: 300 Litre
Hydraulic Connection:
- PTR valve (Pressure Temperature Relief valve): 850 kPa. This valve is a critical safety device that must be installed in a frost-free location and connected to a DN15 copper drain line. The drain line must fall away from the ESWH and be installed in a frost-free environment, complying with AS/NZS 3500.4. It must not be sealed or blocked.
- Cold Water Inlet: Requires a 350 – 500 kPa Pressure Limiting Valve. Additionally, AS 3500.4 & NZBC G12 mandate the installation of both a Stop Valve and a Non Return Valve upstream of the product. No other parts (stop valve, pressure reducer, etc.) should be placed between the pressure limiting valve and the cold water inlet, apart from a copper pipe. Limited water discharge from the Pressure Limiting Valve during heating is normal, and the discharge pipe needs to be connected to an external drain.
- Hot Water Outlet: A tempering valve must be installed at the hot water outlet if local, state, or federal regulations specify a maximum hot water delivery temperature.
- Piping: All pipes used must support 1 MPa (10 bar) and 100°C.
- Dielectric Connector: Must be installed between the hot water outlet and T-piece to prevent corrosion.
Electrical Connection:
- All electrical work must be performed by a registered electrician in accordance with AS/NZ 3000.
- The ESWH requires a single-phase 16 amp supply.
- The appliance must be filled with water before connecting to a power supply.
- A bipolar cut-out device (fuse, breaker switch) respecting local regulations (30 mA earth-leakage breaker) must be installed upstream of the appliance.
- The earth conductor of the cable must always be connected to the earth ground wire or the appropriate terminal.
Physical Installation:
- The water heater must be installed in a room protected from frost. Damage due to a blocked PTR valve safety device is not covered by warranty.
- If the ambient temperature exceeds 35°C, sufficient ventilation must be provided.
- A tray/sump is compulsory if mounted in a suspended ceiling, under a roof, or above a living area.
- The appliance must be positioned for easy access.
- The wall and/or floor must support the weight of the appliance when filled with water (minimum 400 kg load for the floor).
- The device is intended for use at a maximum altitude of 3000 m.
- The water heaters must be fixed to the ground using the provided attachment, complying with the New Zealand Building Code Clause G12, Seismic restraint of storage water heaters.
- Installation must comply with AS/NZS 3500.4.2 and all local codes.
- Adequate clearance (approximately 150 mm for PTR valve removal) is required for service/replacement of cold water inlet piping devices, PTR valve, tempering valves, elements, and thermostats.
- It is recommended not to place combustible material on or adjacent to the water heater.
Usage Features:
- Thermostat Adjustment: The factory temperature setting is 65°C. The temperature can be lowered by turning the wheel on the potentiometer. To avoid bacteria development (legionella), ensure a temperature of 60°C is reached daily. Maximum temperature is 71°C.
- Commissioning: Never switch on the water heater without it being filled with water. Before switching on, open hot water taps, bleed pipes until no air is present, and fill the appliance. After 5 to 20 minutes of operation, water should start dripping from the drain outlet, which is normal due to water expansion.
Maintenance Features:
- Flushing Sediment and Draining: To flush or drain, turn off power and cold water supply. Open the lever on the pressure and temperature relief valve (carefully, to avoid damaging the valve seat). Undone the union at the cold water inlet, attach a hose to the water heater side of the union, and direct it to a drain. Opening the PTR valve allows air in for draining. After draining, close the PTR valve, reconnect the cold water inlet, open the cold water stop valve, and flush through to ensure the cylinder is clean. Finally, close hot taps and turn power back on.
- Domestic Maintenance (User):
- Operate the Pressure Temperature Relief valve once a month to eliminate scaling residue and check for blockages. Open and close the PTR valve slowly to avoid seal damage. Failure to do so may mask problems and invalidate the guarantee. Continuous leakage from the PTR valve may indicate a problem.
- Maintenance by a Qualified Person:
- Remove scale sludge; do not scrape or chip at lime scale on the casing to avoid damaging the lining.
- Change the magnesium anode every 2 years or when its diameter is less than 10 mm.
- Changing the heating element or anode requires draining the water heater and changing the seal.
- If the supply cord is damaged, it must be replaced by a special cord or assembly from the manufacturer or approved service agent.
- Thermal Cut-out: All Atlantic ESWH are equipped with a thermal cut-out with manual resetting that shuts off power if the water heater overheats. If the circuit breaker keeps tripping:
- Switch off power.
- Remove the cover.
- Check electrical connections.
- If the cut-out continues to trip, replace the thermostat. Never bypass safety devices or the thermostat.
- The thermal cut-out for the auxiliary electric heating element must be replaced by an authorized agent. Failure to do so invalidates the warranty.
- DANGER: A tripping thermal cut-out indicates a potentially dangerous situation. Do not reset it until a qualified person has serviced the water heater.
- Replaceable Parts: Thermostat, seals, heating element, boiler shell, indicator light, magnesium anode, and connection cable. Genuine manufacturer's parts are required for warranty.
Warranty Conditions:
- Installation Compliance: Installation must comply with AS/NZS 3500 Plumbing & Drainage Code, NZ G12 New Zealand Building Code, good practice, applicable installation standards, and Atlantic Australasia's technical instructions. Requires a licensed electrician for electrical connections and a licensed plumber for water connections.
- Maintenance Compliance: Regular operation and maintenance as per the manual are required. Supporting evidence (service agent report/invoice) may be needed for claims. If installed in a regional location with sediment build-up, a drain cock or tee for flushing must be fitted at installation.
- Warranty Periods:
- Water Heater Tank: 5 years (domestic), 2 years (commercial).
- Tank Labour: 2 years (domestic), 1 year (commercial).
- Element: 2 years.
- All Parts and Labour: 1 year.
- Warranty Start Date: Date of purchase (invoice) or, if no documentary evidence, manufacture date plus six months. Warranty on replacement parts/heaters ends at the same time as the original warranty.
- Warranty Coverage: Repair or exchange/supply of parts free of charge, excluding labour and transport replacement charges. Internet registration is required for warranty protection.
- Service Calls: If a service call is requested and the defect is not warranted, the purchaser may be charged for associated costs.
Warranty Exclusions (Voiding Warranty):
- Abnormal scaling of heating elements or safety unit PTR valve.
- No maintenance of safety unit PTR valve leading to excess pressure.
- Modification of equipment without notifying the manufacturer.
- Use of spare parts not recommended by the manufacturer.
- Physical damage from impacts or falls after leaving the factory.
- Problems related to abnormal water supply (e.g., high pressure > 1,000 kPa, faulty plumbing, electrical wiring issues, major variations in electrical energy supply).
- Failure to fit a 500 kPa pressure limiting valve during installation.
- Misuse, accidental damage, acts of God, incorrect installation (including location in premises affected by frost, bad weather, or unlicensed service repair).
- Damage from power surge, high voltage injection, or lightning strike.
- Damage from non-detectable problems due to inaccessible device location that could have been avoided if properly located.
- Claims for damage to walls, foundations, floor coverings, furnishings, roofs, or other losses directly or indirectly due to leakage.
- Powering up the ESWH before it has been filled (heating when dry).
- External corrosion due to non-watertight piping connections.
- System sold, repaired, or altered by a third party without Atlantic Australasia's consent.
- Fair wear & tear, particularly from adverse conditions like corrosion and condensation.
- Water Composition Exclusions: Warranty is excluded if water composition is outside specific values:
- Total dissolved solids: >1000 mg/litre or p.p.m.
- Electrical Conductivity: < 500 and > 800 uS/cm.
- Total hardness: <150 mg/litre or p.p.m.
- Chloride: >250 mg/litre or p.p.m.
- Sulphate: >250 mg/litre or p.p.m.
- Magnesium: >10 mg/litre or p.p.m.
- Sodium: >150 mg/litre or p.p.m.
- pH: < 6.5 and > 8.5
- Water from springs, bores, and dams is excluded due to variable composition. Water MUST be from a supplied, reticulated source or rainwater for warranty compliance.
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