Energy Recovery Ventilation (ERV)
[RHF-***EE]
SAMSUNG Electronics
SE Group
Contents
Ⅰ. How it works?
Ⅱ. Key Technology
Ⅲ. Controls & Solution
Ⅳ. Case Study
V . ERV Line up
Ⅰ. How it works?
It provides a controlled way of ventilating a home while minimizing energy loss.
■ In The Winter, It reduces the costs of heating ventilated air by transferring heat
from the warm inside air being exhausted to the fresh (but cold) supply air
■ In the summer, the inside air cools the warmer supply air to reduce ventilation
cooling costs
Polluted & High Humid Air
Polluted Cold Air
Element
Heat
Heat
Heat
Heat
Moisture
Indoor
Moisture
Outdoor
Element
Moisture
Heat
Moisture
Moisture
Heat
Heat
Heat
Heat
Moisture
Filtered & Fresh Air
Element
Cold & Dry Air
Ⅰ. How it works?
 Optimized Design of Air Flow
 High Efficiency Element
 Constant Air Volume by BLDC Fan Motor
Cellulose
Exhaust Air
Rectangular Type
Hexagonal Type
Outdoor Air
Synergy
Effect
Return Air
Diamond Type
Optimized Design
High Efficiency
Compact Size
Patented in SAMSUNG
Supply Air
Pre-filter
High Efficiency Pre-filter
The ratio of dust collection : over 72% (based on ASHRAE Std 52.1)
Samsung
Daikin
High Efficiency Pre-filter
Non-woven fabric
Spec.
Filter media
Frame
Hot melt
Media
PP + PET Spun bond
Composition
PP + PET Nonwoven
Weight
120g/㎡ ± 10%
Material
PET
Weight
260g/㎡ ± 20%
Material
Nylon
Weight
139 ~ 149 ℃
Summary
Differentiation
1. High Energy Efficiency
2. Environmentally Friendly
Products
3. Compact Design &
Flexibility Installation
4. Intelligent Operating
System
5. Controls & Solution
6. Others
Ⅱ. Key Technology
1
High Efficiency
□ Energy Savings by High Efficiency BLDC Fan Motor
SAMSUNG
Model
Competitor
(Basic)
Current
Old Model
RHF025EE (250 CMH)
130W
115W
-
RHF035EE (350 CMH)
195W
115W
-
RHF050EE (500 CMH)
260W
175W
210W
RHF080EE (800 CMH)
450W
330W
-
RHF100EE (1000 CMH)
580W
450W
-
48.5%
Basic
20.0%
Current
Competitor
$120/Year
Saving by 14%
Operating Cost
Power Consumption (W)
500CMH
Basic
Current
Ⅱ. Key Technology
□ BLDC Fan Motor
Based on 500CMH
Comparison
Image of Fan
Motor
CAE of Fan
Motor
Optimized
Factor
Items
Samsung
Basic
Motor Type
BLDC
AC
Induction
Efficiency
80%
40%
Noise
-
High
Frequency
Outer Size
Φ88
Φ120
Graph
Ⅱ. Key Technology
Environmentally Friendly Material applied (RoHs)
2
Trend
RoHS
Characteristic
□
World trend urging maker to use
environmentally friendly material from the
design phase
□ Requesting document verified by third party
Regulation
More strict regulation for protecting earth
- USA : Proposition 65(California Law)
- EU : RoHS, REACH, EuP ...
- Korea : Green Mark ….
Result by RoHS
27%
48%
40%
Before
After
Recycling
Before After
Energy Saving
Before After
Improvement
by RoHs
Ⅱ. Key Technology
3
Top Class Compact Size in the World & Flexibility in Installation
Compact and Slim in Size by High
Efficiency Diamond Element
350
600
Horizontal Position with Upside Down
Exaust Air
Room Air
Outside Air
Supply Air
MODEL NO. RHF-025
Space for servicing
Supply Air
Reversed Installation
270
MODEL NO. RHF-035 ~ 050
340
MODEL NO. RHF-080 ~ 100
Room Air
Ⅱ. Key Technology
4
Intelligent Operating System on Any Operation Condition
□ Wide Operation up to -15℃
How to Operate
Refer to next page
Ambient
Temp of
Unit(℃)
A : Room Temp (In)
B : Outdoor Temp
C : Room Temp (Out)
B’ : Pre-Heated Outdoor Temp
C’ : Heated Room Temp
Outdoor Temp(℃)
Operation Characteristics
Pre-Heated
On/Off operation
Absolute
Humidity
♣ No reduction in air flow resulting
from moisture
♣ No moisture on element
Time
Dry Temp(℃)
Ⅱ. Key Technology
□ Operation Pattern based on outdoor temperature
System is capable of self adjustment depending on outdoor temperature to prevent it from
being iced on element
Outdoor Temp
Operation Type
Intake
Discharge
Above 0℃
Normal Operation
On
On
0 ℃ > TOA >-5 ℃
“A” Type Cyclic
Operation
-5 ℃ > TOA >-10 ℃
“B” Type Cyclic
Operation
Refer to below operation
pattern
-10 ℃ > TOA >-15 ℃
Off
On
Below -15 ℃
Off
Off
‘A’ Type
80min
Both Intake and Discharge On
‘B’ Type
50min
Both Intake and Discharge On
10min
80min
Remarks
Repeated on a
regular time
basis
10min
Only Discharge On Both Intake and Discharge On Only Discharge On
10min
50min
10min
Only Discharge On Both Intake and Discharge On Only Discharge On
Ⅱ. Key Technology
□ Self Adjustable Fan RPM according to Static Pressure
■ Constant RPM
: Current increases as static pressure become lower
■ Constant Air Volume (Applied to ERV)
:Current decreases even though static pressure
become lower
:Fan RPM is adjusted according to tables calculated
by current and static pressure from test
When static pressure becomes down,
constant PRM type tends to get more air
volume ; resulting in bigger noise and more
power consumption than designed
See how system works at next page
Constant RPM
Heat Exchange Rate(%)
ESP(mmAq)
How to operate
Turbo
High
Low
Turbo
Duct Length
High
Low
Air Volume(CMH)
Duct Length
Constant Air Volume
Turbo
ESP(mmAq)
High
Turbo
Low
High
Low
Duct Length
Duct Length
Air Volume(CMH)
Air Volume(CMH)
Heat Exchange Rate(%)
Air Volume(CMH)
Ⅱ. Key Technology
□ Energy Saving Operation (Auto Mode)
Case 1) ERV in Summer & Winter
Damper( Closed)
It automatically changes operation
mode depending on temperature
EA
difference between indoor & outdoor
to save energy
RA
OA
SA
Element
Extreme Climates
(Winter & Summer)
When temperature and humidity level
difference between indoor & outdoor is
big, it operates as ERV
Case 2) Conventional Ventilation in Spring & Fall
Damper (Open)
RA
EA
Mild Climates
(Spring & Fall)
When temperature and humidity level
difference between indoor & outdoor is
small, it operates as conventional
ventilation fan
OA
SA
Element
Normal
Energy Saving
Ⅱ. Key Technology
□ Operation Condition
Temp Difference Between
Indoor and Outdoor Room
Operation Type
Damper
Remarks
△T>±5℃
Normal operation as a ERV
Close
Case1
△T<±5℃
Operation as a convention ventilation
fan
Open
Case2
△T : temp difference between indoor and outdoor room
□ How To Set PCB Option Code
Ⅱ. Key Technology
□ Automatic Refresh System ( CO2 Sensor, Optional)
CO2
Fresh Air
CO2
CO2
Note
1. K9 dip switch should be off position
2. In general, above 1000ppm is
regarded as pollution
☞ ERV is automatically operated to give fresh air into room by sensing CO2
Level
☞ Turbo-High-Low-RPM
☞ Optional
Fan Speed depending on Co2 Density
□ CO2 1200ppm ↑  Turbo RPM
□ CO2 Density 800ppm ↑ : High RPM
□ CO2 Density 800ppm ↓ : Low RPM
Ⅱ. Key Technology
5
Test Result
□ Effect of using ERV in real living condition
Monitoring the density of CO2
ERV On
05:30
Start
Sleep
00:46
Occupied
ERV Off
11:15
Density
19:00
22:40
05:30
Time
Ⅱ. Key Technology
Concept of CO2 sensor
CO2의 농도에 따라 적외선(IR)을 흡수하는 강도가 다른 원리를 활용한 방법
Ⅱ. Key Technology
□ Life Test
Definition of Living Condition
Definition of Life Test
No failure with 5units at acceleration test of 1100hr
guarante10year(B10 Life) with confidence level of 60%
Optimized Design
Caculation
Ⅱ. Key Technology
□ How it was designed & certified?
ERV
☺ Energy Saving
- Top Class in the world
- Great Energy Saving
☺ User Friendly Design & Easy Application
☺ Certified by recognized third party
Performance
Korea Test Laboratory
 Friend of Industry
Technology Information
 Construction Safety
Management Association

Reliability
Korea Electric Testing
Institute
 SAMSUNG Test Lab
recognized by EU
Co-Research


KS JIS, IEC
Ventilation
Association
University
IAQ
Community
How to clean the heat exchanger
Ⅲ. Controls & Solution
1
PCB Layout
2
Function switch & display
3
Option switch & setting
4
Wired remote controller
5
Centralized controller
6
DVM interlock
7
External control
8
Additional operation
Ⅲ. Controls & Solution
※ Controls and Accessories for ERV system
Solution
Model name
PC Software (S-NET III)
MST-P3P
DMS
MIM-D00
-
Centralized controller
MCM-A202
For Connecting S-NET Ⅲ & DMS
Interface Module
MIM-B13
For Connecting S-NET Ⅲ & DMS
Wired Remote Controller
MWR-VH01
-
CO2 Sensor
MOS-C1
-
※ Above are optional parts
Description
Ⅲ. Controls & Solution
1. PCB Layout (1)
①
②
③④ ⑤
No
⑥
1
Function key
2
DISPLAY
3
CO2 Sensor
Optional
4
Temperature Sensor
Indoor &
Outdoor
⑨
5
Damper Switch
ERV Itself
⑩
6
External Control
On/Off
Control
⑪
7
Wired Remote controller
Communication
F3, F4
8
Wired Remote controller
Power (12V)
V1, V2
9
Communication between ERVs
F1, F2
or Transmitter
⑧
⑭
Remarks
See “2.
Switch &
display”
⑦
⑮
Item
⑫
⑬
10 Operation & Error Check
Ⅲ. Controls & Solution
1. PCB Layout (2)
①
②
③④ ⑤
No
⑥
Item
Remarks
11 Damper Motor
12 External Contact Device
Humidifier
HEATER
DAMPER
13 Power
220V / 50Hz
(L,N)
14 Option switch
See “3.
option
switch &
settin”
15 Address switch
See “5.
Centralized
controller
⑦
⑧
⑨
⑮
⑩
⑭
⑪
⑫
⑬
Ⅲ. Controls & Solution
2. Function switch & Display
Function switch
Switch No.
Press
time
Function
K1
1
Heat Exchange
Trial Operation
K2
1
Air Volume Control
Trial Operation
K3
1
Reset
K1 :
K4
1
Data view mode
Description
To check whether the product operates properly
after the installation.
To adjust fan speed for constant air volume for 20
min
To reset ERV operation
To check the specific operation data
- Exhaust Air FAN RPM
- Supply Air FAN RPM
- Indoor Temperature
- Outdoor Temperature
-CO2 Density
- Installed unit number
(See mmm Page)
Ⅲ. Controls & Solution
2. Function switch & Display
Display
- 7-Segment Display shows the Communication status and Specific operation data (Data view mode)
SEG1 SEG2 SEG3 SEG4
Numbers and Alphabets on PCB Display
1) Communication status display (Display normally)
SEG1 : If the ERV wired remote control is correctly connected, “U” flickers.
SEG2 : If MASTER is set, “M” appears. If SLAVE is set, “S” appears.
SEG3 : If MASTER is set, MAIN ADDRESS of transmitting SLAVE appears.
If SLAVE is set, its MAIN ADDRESS appears.
SEG4 : If MASTER is set, MAIN ADDRESS of receiving SLAVE spears.
If SLAVE is set, its RMC ADDRESS appears.
<Example>
Wired remote controller connected
Slave set
Main address : 0
RMC address : 8
Ⅲ. Controls & Solution
2. Function switch & Display
Display
2) Data view mode
A variety of data appear when pressing K4
(① Exhaust Air FAN RPM, ② Supply Air FAN RPM, ③ Indoor Temperature, ④ Outdoor Temperature,
⑤ CO2 Density, ⑥ Installed Unit Number)
<Example>
Ⅲ. Controls & Solution
3. Option switch & setting
※ K5, K16 have no function
Function
K6
K8
Cenralized
controller
K10
External CO2
sensor
Filter replacement
alarm
K11
K12
External control
priority
K13
External
humidifier
K14
K15
Not use centralized controller
Off
Use centralized controller
On
Set ERV as “Slave” when ERV communicate with
other ERVs in COM(F1/F2) line
Off
Set ERV as “Master” when ERV communicate with
other ERVs in COM(F1/F2) line
On
Not use External CO2 sensor
Off
Use External CO2 sensor
On
Display filter replacement alarm after 2000 hours
operation time
Off
Display filter replacement alarm after 1000 hours
operation time
Master / Slave
K5 K6 K7 K8 K9 K10 K11 K12 K13 K14 K15 K16
K9
On
External heater
External damper
Set control priority between External control and
Wired remote controller (See left table)
On
Not use External humidifier
Off
Use External humidifier
(ERV On  External humidifier On)
On
Not use External heater
Off
Use External heater
(ERV On  External heater)
On
Not use External damper
Off
Use External damper
(ERV On  External damper)
Ⅲ. Controls & Solution
4. Wired remote controller : Connection
MWR-VH01
Communication line
(COM2 : F3 / F4)
Power line
12V
(V1 / V2)
Ⅲ. Controls & Solution
4. Wired remote controller : Wiring example
Individual control
1 Wired remote controller : 1 ERV
Power DC 12V
COM2 (F3/F4)
Control & Display
Connected ERV
Group control
1 Wired remote controller : Max 16 ERVs
Power DC 12V
COM2 (F3/F4)
※The ERV wired remote control controls ERVs which are
connected to the COM2 communication cable only.
Control & Display
Control : Control all connected ERVs at once (as one group)
Display : Display one (random) of the connected ERVs status
Ⅲ. Controls & Solution
4. Wired remote controller : Wiring example
2-Remote controller
2 Wired remote controller : 1 ERV
Power DC 12V
COM2 (F3/F4)
Master
Slave
Control & Display
Connected ERV
2-Remote controller
2 Wired remote controller : Max 16 ERVs
Master
Power DC 12V
COM2 (F3/F4)
※The ERV wired remote control controls ERVs which are
connected to the COM2 communication cable only.
Control & Display
Control : Control all connected ERVs at once (as one group)
Display : 2 Remote controller display same one (random) of the connected ERVs
Ⅲ. Controls & Solution
5. Centralized controller : ERV switch setting
▶ To control more than one ERV through a interface module and a centralized controller,
one of ERVs must be set as ‘Master’
▶ K6 switch on the ERV PCB must be set to the OFF position to support centralized control.
▶ How to set ERV as Master : One of ERVs in COM1 line, set K8 OFF
◈ Main : Used for communication between ERVs installed
(Each ERV in same COM1 line must have different Main address)
◈ RMC : Used for centralized controllers
(This number is correspond with Centralized controller button number)
◈ K6 ‘OFF’ means ERV is controlled by Centralized controller
◈ K8 ‘OFF’ means that this unit works as a MASTER
K6 K8
Master
※ MASTER must be only 1 unit in same COM1 line
Main : 0
RMC : 0
K6 : Off
K8 : Off
COM1 (F1/F2)
Main : 1
RMC : 1
K6 : Off
K8 : On
Main : 2
RMC : 2
K6 : Off
K8 : On
Main : 3
RMC : 3
K6 : Off
K8 : On
Ⅲ. Controls & Solution
5. Centralized controller : Interface module connection
※ Do not use
Power line : DC 12V
(V1/V2)
MIM-B13
※ All switches must be ON (default off)
Communication line
(COM1 : F1/F2)
Install MIM-B!3
here
MAX 16 ERVs can be connected
Pathway for wire
Earth
PBA
Ⅲ. Controls & Solution
5. Centralized controller
MCM-A202
MIM-B13
R1/R2
MAX 16 ERVs can be connected to 1 Interface module
F1/F2 (COM1)
DC 12V
MASTER
Main : 0
RMC : 0
K6,8 : OFF
K5 K6 K7 K8
MASTER
MAX 16 Interface Modules
&
MAX 256 ERVs
Main : 1
RMC : 1
K6 : OFF
K8 : ON
Main : 2
RMC : 2
K6 : OFF
K8 : ON
Main : 1
RMC : 3
K6 : OFF
K8 : ON
Main : 2
RMC : 3
K6 : OFF
K8 : ON
DC 12V
Main : 0
RMC : 3
K6,8 : OFF
※ RMC address is used to control ERV by centralized controller
Ex, ERV having RMC address of 3 is operated by centralized controller of button 3
Ⅲ. Controls & Solution
5. Centralized controller + Wired remote controller
MCM-A202
MIM-B13
R1/R2
Main : 1
RMC : 1
K6 : OFF
K8 : ON
F1/F2 (COM1)
DC 12V
Main : 2
RMC : 2
K6 : OFF
K8 : ON
Main : 0
RMC : 0
K6,8 : OFF
MASTER
F3/F4 (COM2)
DC 12V
MWR-VH01
※ RMC address is used to control ERV by centralized controller
※The ERV wired remote control controls ERVs which are connected to the COM2
communication cable only (Don’t care ERV Main / RMC address)
Ⅲ. Controls & Solution
5. Centralized controller : Control priority
Level 0
ERV will be able to operate with the most recently used controller, centralized
controller or wired remote controller
SW1 : OFF
SW2 : OFF
SW3 : Don’t care
SW4 : Don’t care
Level 1
The Wired remote controller can olny be used when the ERVs are turned ON by
centralized controller
ERV 00, 01 OFF
ERV 02 ON
SW1 : ON
SW2 : OFF
SW3 : Don’t care
SW4 : Don’t care
ERV 00
ERV 01
X
X
ERV 02
Ⅲ. Controls & Solution
5. Centralized controller : Control priority
Level 2
ERV will be operated by only centralized controller
SW1 : OFF
SW2 : On
SW3 : Don’t care
SW4 : Don’t care
Level 3
X
X
X
Level 0 and Level 2 can be switched by All ON button
ERV 00
ERV 01
O
O
O
X
X
X
ERV 02
 Level 0 state
SW1 : ON
SW2 : ON
SW3 : Don’t care
SW4 : Don’t care
 Level 2 state
Ⅲ. Controls & Solution
6. DVM indoor unit operation interlock
□ ERV and DVM indoor unit can be operated by using ERV Wired remote controller in COM2 connection
□ Only Indoor units and ERVs which are connected in same COM2 connection can be operated
□ To make DVN indoor unit and ERV operated , ERV Wired remote controller K3 must be OFF
□ The number of ERVs and DVM indoor units combined together must not exceed 16.
□ Every DVM Indoor units which support COM2 (F3/F4) can be operated with ERV
□ DVM wired remote controller MWR-TH01/ MWR-WS00 can not be used together
Room 1
COM1
Room 12
Room
② ON
① ON
COM2
No change!!!!
<Interlock Control example 1>
② ON
① ON
① ON
▶ Room1 : When DVM Indoor unit is turned ON(OFF), then ERV also is turned ON(OFF)
- Usable DVM indoor unit controller : Wireless R/C, Centralized controller, External control, DMS, S-NET3
▶ Room2 : ERVs can be turned on / off with ERV wired remote controller(MWR-VH01) regardless of the
operation of DVM indoor units
Ⅲ. Controls & Solution
6. DVM indoor unit operation interlock (2)
<Interlock Control example 2>
COM1(F1/F2)
①
②
③
④
⑤
COM2(F3/F4)
⑥
⑦
▶ If one of indoor units installed is turned ON, then ERV is turned ON together.
- Usable DVM indoor unit controller : Wireless R/C, Wired R/C, Centralized controller, External control, DMS, S-NET3
▶ When all indoor units are turned OFF, then ERV is turned OFF automatically
▶ ERVs can be turned on / off with ERV wired remote controller(MWR-VH01) regardless of the operation of DVM
indoor units
1. Turn one of indoor units installed ON ①~⑤  ERV⑥ is turned ON automatically
2. When all indoor units are running ON and then only one of indoor units in operation is OFF ERV⑥ is not
turned OFF
3. When all indoor units ①~⑤ are turned Off ERV⑥ is turned OFF automatically
4. When ERV by wired R/C⑦ is turned ON  Only ERV⑥ is turned On and Indoor unit ①~⑤ are not turned
ON
Ⅲ. Controls & Solution
7. External control
Input external contact
Connect both sides of EXT1(EXT2 or EXT3).
- Up to 3 units can be connected at once.
- Below the picture displays the condition
that 2 external controllers are connected.
※Input Non-powered contact
External 1
※Input Non-powered contact
External 2
Ⅲ. Controls & Solution
7. External control
Output Error / Operation status signal
External Power Supply is needed
Output Error Signal
(Non-powered)
Lamp
CN77
Lamp
Output Operation signal
(Non-powered)
External Power Supply is needed
It lets users know the status of ERV operation
-When unit is in operation, operation signal is on.
-When unit is not in operation, operation signal is off
It lets users know the status of ERV Error
-When Error has occurred , Error signal is on.
-When Error has not occurred , Error signal is off
Ⅲ. Controls & Solution
7. External control example (1) : DVM indoor unit  ERV
COM1(F1/F2)
External contact connection
Connected to
Indoor PCB
MIM-B14
Input
②
① Output the outdoor unit operation status (COMP) ON/OFF
(non-powered signal)
② Input ERV external control
①
Output (Error)
Output (Comp)
□ If outdoor unit is turned ON, the connected ERV is turned ON together
□ If outdoor unit is turned OFF, the connected ERV is turned OFF
□ ERV can be controlled by ERV wired R/C
(ERV external control and ERV wired R/C conttol priority, See “Option switch & setting, K11,K12”)
Ⅲ. Controls & Solution
7. External control example (2) : ERV  DVM indoor unit
COM1(F1/F2)
External contact connection
MIM-B14
①
②
① Input indoor unit external control contact
(non-powered signal)
② Output ERV operation state ON/OFF
(non-powered signal)
□ If ERV is turned ON, the connected Indoor unit is turned ON
□ If ERV is turned OFF, the connected Indoor unit is turned OFF
□ Indoor unit can be controlled by DVM wired R/C (MWR-TH01/MWR-WS00)
Ⅲ. Controls & Solution
7. External control : External contact device
K13 : Humidifier (OFF:USE)
K14 : Heater (OFF:USE)
SET
K13 K14 K15 K16
K15 : Damper (OFF:USE)
Humidifier
Heater
Damper
Common
Damper works when ERV starts operation
Ⅲ. Controls & Solution
8. Additional operation : Test run
- Push ‘K1” button for test run. While in test run
is displayed on DIS1
- When Wired remote controller is connected correctly,
flickers on the DIS1.
- If multiple ventilators are connected, set K8 of one out of ventilators to off
position as a master
When ventilator is set as master, main address of slave is displayed.
When ventilator is set as master, its main address is displayed
When ventilator is set as master, main address of slave ventilator is
displayed. When ventilator is set as slave, its main address is displayed
“M” is displays when ventilator is set as master. “S” is displays when
ventilator is set as slave
“u” flickers when wireless remote controller is connected
Ⅲ. Controls & Solution
8. Additional operation : Constant Air volume control
Ⅲ. Controls & Solution
※ ERV Error code
Ⅳ. Case Study – In Korea
Example 1
Example 2
Corridor
Corridor
Garbage
Room
Garbage
Room
Toilet1
Toilet1
Kitchen Room
Toilet2
Toilet2
Living Room
Living Room
Hood
Hood
Kitchen Room
ERV
Machine
Room
Machine
Room
Hood
Hood
Supplementary
Kitchen
Ventilation Fan
Supplementary
Kitchen
ERV
Exhaust Fan
for Kitchen
Supply Fan
for Kitchen
Exhaust Fan
for Toilet
Ⅳ. Case Study – Combination with DVM Plus II
청정유닛
Electronics Humidifier
전열교환기
향공조유닛
SA
SA
향공조유닛
온,습도센서
Controller
Room
Sensor 통합제어기
온,습도센서
Room
Sensor
Machine Room
Bath Room
Bed Room
Dress Room
Living Room
Thank You!