ACE III-gas heater

8/7/2019 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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- 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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- 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)


(-)

(+)

Air Pressure SensorMain

PCBVenturi

Air

FanMagnetic

Pole

Hall-IC


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- 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.


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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9

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.


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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10

Adaptive Heating Control


- 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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ACE III-gas heater