ace iii-gas heater
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CONTENTS
1. ACE III Design & Structure
2. ACE III Room Thermostat
3. ACE III Features & Strong Points
4. Comparison of GOM+ & ACE III
5. ACE III Sales Points
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31. ACE III Design & Structure
ACE III Design ACE III Inner Structure
Tap water Inlet(include Sediment Filter)Heating Return
Heating Supply
D.H.W. Outlet
Gas Inlet
Pressure Relief V/V
Modulating Gas Control V/V
Air Inlet Flue Exhaust
Expansion Tank
Heating Air Vent
Flow S/W
3-Way V/V
Circulation Pump(Canned Type)
Pressure Gauge
Domestic Heat Exchanger
Fan Assembly
Burner Assembly
Main Heat Exchanger (STS)
Combustion Chamber
Heating Strainer
APS (Air Pressure Sensor)
Controller, PCB
Domestic Water Flow S/W
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42. ACE III Room Thermostat
Quick D.H.W Power
D.H.W Only
A/S Running
D.H.W Heating
HML
WRT
Select a Heating
Control Type
Water Temp. / Room Temp.
/ Timer
Heating Control
Quick D.H.W Function
Automatically be released
after 10 minutes if not using
Quick D.H.W
W : 40~80C / R : 10~40C / T : 0~12HH : 70C / M : 60C / L : 50C
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53. ACE III Features & Strong Points (1)
Stainless Steel Heat Exchanger
- Durable and Clean- Possible to run a mid-water temp.
(30~50) operation without any
corrosion.- Long Life and High Efficiency
SMPS (Switching Mode Power Supply) into Main PCB
- Stabilize the power supply- Protect all the electric components of a boiler- Extend life time of a boiler & the components- Be able to allow a wider voltage range => 220V30%
Mid-Water Temperature Operation
Mid-water temperature (30~50) heating give a lower heat loss in the distribution system,
lower standby losses of the boiler, and a higher efficiency. (especially better result under well isolatedheating circumstance) But there will be condensing water and corrosion on the heat exchanger.
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63. ACE III Features & Strong Points (2)
- Adopt a high precision Canned Type Pump.- Effectively reduce a noise level.- Prevent a noise problem due to any attracting iron substance to
the impeller of a pump (especially Magnetic Type Pump).
Canned Type Circulation Pump
- Pre-heat the cold water in the piping. (Quick D.H.W button)- Possible to get the hot water as soon as the tap is up.- No need to waste water until all the cold water in the piping is drained out.- To save the gas, this function is released after 10 minutes if not using D.H.W.
Pre-heated hot water delivery system
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APS (Air Pressure Sensor)
- Sense the level of magnetic moving accordingto the difference of pressure (P) between
(+) and (-).- Give a signal to the main controller to indicatehow much air is being supplied exactly.
- Possible to operate a boiler safely eventhere is any sudden change of external impact(e.g. Contrary or Strong wind).
- Flexibility of flue installation(e.g. Length and structure of flue installation)
3. ACE III Features & Strong Points (3)
(-)
(+)
Air Pressure SensorMain
PCBVenturi
Air
FanMagnetic
Pole
Hall-IC
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APS (Air Pressure Sensor)
- In the real case, the wind is very changeable.- As you can see the test graph below, (A) case emits much CO if the wind
intermittently blows.- But in the (B) case (APS), volume of CO is very low and give a stable combustion
even under any changeable wind condition.
3. ACE III Features & Strong Points (4)
4.710.55.010.54.810.410.0O2 (%)
330092280090320098138CO (ppm)
0400400400Velocity(m/s)
1412108642Time (min)
(A) By Velocity of Rotational Frequency (B) By APS (Air Pressure Sensor)
0400400400Velocity(m/s)
11.010.811.210.610.910.811.0O2 (%)
36403250353836CO (ppm)
1412108642Time (min)
* Tested by Navien laboratory
Time (min.) Time (min.)
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Anti-Freezing System
- Start a circulation pump and circulate water in the heating pipingif the temp. of heating water below 10.
- Start a boiler if the temp. of heating water below 6 to prevent freezing.
- No need any additional electric heater thanks to inner pipings are shortand D.H.W part can be heated indirectly.
3. ACE III Features & Strong Points (5)
Ratio Control
- Control flame- After reaching the setting temp.,
reduce the flame.
- Effectively reduce gas consumptionCompared to a On / Off Control
Time
Time
GasCo
nsumption
GasConsumption
Ratio Control
On / Off Control
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Adaptive Heating Control
3. ACE III Features & Strong Points (6)
- Learn and adapt the specific heatingcircumstance.
- Supply the most suitable heatingaccording to the each condition.(e.g. isolation level of the house,change of the temperature outdoor)
Motorized Cam Shift Type 3-Way Valve
- No wear & durable- Better sealed compared to a rotatingball type 3-way valve
- Naviens own patent technology
On/Off Control
Adaptive Control
RoomTemp.
Time
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114. Comparison of GOM+ & ACE III
STSCuH/E
0.1bar0.2barWATER PRESSURE
50~250mmH2O100~250mmH2OGAS PRESSURE-40-20COLD RESISTANCE
220V30%220V20%VOLTAGE
83%82%~83%EFFICIENCY (GCV)
Canned TypeMagnetic TypePUMP TYPE
SLIMED AND
STANDARDIZED
440*265*695485*235*630
(525*250*685)
SIZE
(W*D*H)
ELECTRIC AIR RATIOCURRENT RATIOCONTROL TYPE
DESIGN
REMARKACE IIIGOM+
* GCV : Gross Calorific Value / H/E : Heat Exchanger
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ACE IIIACE III
Canned TypePumpCanned Type
Pump
A/S PartsControl
A/S PartsControl
WiderWater Pressure
Allowance
WiderWater Pressure
Allowance
ColdResistance
ColdResistance
125. ACE III Sales Points
WiderGas Pressure
AllowanceWider
Gas PressureAllowance
WaterFilterWaterFilter
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