USER GUIDE
5. Time clock
This allows the HeatMaster® to be timed on and off and operates on a 24 hour sequence. Around the outside of the clock there are a number of white tabs, these allow 15 minute switching periods. To set the time clock simply push outwards the number of tabs required for ON period.
Remember: | TAB IN = HeatMaster OFF |
| TAB OUT = HeatMaster ON |
6. Temperature and pressure gauge
This gauge indicates both the temperature of the HeatMaster® and the pressure within the primary circuit.
The temperature should not exceed 90°C - if it does, switch the boiler off and check the thermostat setting. If the fault persists, call an engineer.
The pressure should not fall below 1bar, if it does the please see the 'Heating System Pressure' paragraph later in this section.
7. Low primary water pressure indicator
If this indicator lights up, the primary circuit of the HeatMaster® requires topping up with water. Please see the 'Heating System Pressure' paragraph later in this section.
Heating-system pressure
The heating circuit may require a
In the case of repeated fills, contact your installer.
The pressure of the primary circuit must be at least 1 bar and must be regularly checked by the end user. If the pressure falls below
0.5bar, the
The HeatMaster® 200 N / 200 F is fitted with a
To do this, turn the On/Off switch on the left of the control panel to Off.
For more information, please ask your installer when delivering the system.
The appliance is fitted with a safety valve. If the system pressure exceeds 3 bars, this valve opens and drains the water from the system. In this case, contact your installer.
Fig. A | Fig. B |
(cover) | (rear panel) |
DESCRIPTION
OPERATING PRINCIPLE
The HeatMaster® is a high performance, direct fired hot water storage heater, which has indirect heat transfer due to its
At the heart of the HeatMaster® is a stainless steel cylinder through which the flue tubes pass. This is surrounded by a mild steel shell containing the primary water (neutral fluid). The outer shell extends down to the combustion chamber and even around the flue tubes. The area of the heat transfer surface is therefore much greater than that of standard direct fired water heaters.
A circulating pump fitted to the primary circuit moves the water around the tank, heating it faster and maintaining an even temperature across the primary jacket.
The burner, either gas or oil, fires onto the primary water which indirectly heats the stainless steel cylinder containing the DHW. As with all
The cylinder expands and contracts during use and this, together with the fact that cold water does not come into contact with the intense heat of the burner flame, means that limescale buildup is prevented.
This scale resistant feature, along with the corrosion resistance of stainless steel, eliminates the need for sacrifical anodes.
The HeatMaster® has one very major advantage over other direct fired water heaters - because it heats the DHW with a primary circuit, this primary water can be used to provide central heating as well.
By connecting two, three, four or more HeatMaster® together in a module, most hot water and heating demands can be met.
Indeed, when used in conjunction with HR and Jumbo hot water storage tanks the HeatMaster can supply even the largest hot water requirement.
Standard equipment
The HeatMaster 200 has the following items as standard:
-On/off switch
-Summer/Winter switch
-Control thermostat (60 - 90°C)
-Thermal reset
-Manual reset
-Hot water priority thermostat
-Primary circulating shunt pump
-Primary expansion vessels
-Primary safety valve
-Pressure and temperature gauge
-Drain valve
-Body completely insulated in rigid polyurethane foam
PACKING
The HeatMaster is delivered in separate packages.
•Package No. 1:
•Package No. 2: Chimney reducing pipe.
•Package No. 3: Wooden protective casing (jacket and accessory).
•Package No. 4: “RIELLO” RG4S 396 T1 burner (HM 200 F only).
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