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Model
WH-SDC03H3E5-1 WH-SDC05H3E5-1 WH-SDC07H3E5-1 WH-SDC09H3E5-1 WH-UD03HE5-1 WH-UD05HE5-1 WH-UD07HE5-1 WH-UD09HE5-1
Pages
127
Size
17.29 MB
Type
PDF
Document
Simplified Service Manual
Brand
Device
Air Conditioner / AIR-TO-WATER HEATPUMP
File
wh-sdc03h3e5-1-wh-sdc05h3e5-1-wh-sdc07h3e5-1-wh-sd.pdf
Date

Panasonic WH-SDC03H3E5-1 / WH-SDC05H3E5-1 / WH-SDC07H3E5-1 / WH-SDC09H3E5-1 / WH-UD03HE5-1 / WH-UD05HE5-1 / WH-UD07HE5-1 / WH-UD09HE5-1 Simplified Service Manual ▷ View online

127 
  Operation ON/OFF will depend on remocon request. 
  When Heat Mode is running with Contact Open, user change this setting to contact close, indoor will this signal to 
remocon judge and change mode to cool and send back to indoor. And it is same as from cool mode change to 
heat mode. 
* This switch have higher priority, remocon follow indoor send signal when control activated. 
* There is no effect to the operation when the mode running is only Tank Mode. 
 
(Weekly Timer are ignored and cannot be set during Heat / Cool Switch is "Enable" Condition.) 
12.25 SG Ready Control (Optional PCB) 
Purpose: 
  To set ON/OFF of heat pump and target temperature by digital input of third party device if necessary in field. 
  
Optional PCB
D
igi
ta
l I
nput
Remote Station
+ DI2 Com
+ DI1 Com
- Com
 
 
Remote control setting 
 
For this function, following items need to be set on R/C (installer menu) – 
 
  SG control = YES or NO 
  Capacity up setting 1 
o  Heating capacity [50 ~ 150 %] 
o  DHW capacity [50 ~ 150 %] 
  Capacity up setting 2 
o  Heating capacity [50 ~ 150 %] 
o  DHW capacity [50 ~ 150 %] 
 
Control contents: 
 
If SG control on remote control = "Yes", then following control only activate by digital input. 
 
  While Digital input is " 00 " (Normal operation) 
o  Normal operation. Once detect '00' system will operate back to normal condition. 
(All the target set temperature for heating side and DHW side will return back to previous set temperature 
when digital signal change from "10' or"11" back to "00".) 
  While digital input is detected " 01 " (HP stop) 
o  Heat pump & room heater & tank heater cannot operate. 
(Solar control and Boiler back up and 2 Zone control can activate.) 
  While digital input is detected " 10 " (Capacity 1)  
o  Target temperature for heating and DHW Tank is changed according to the percentage set by Remote 
control setting. However, which setting temperature is change depend on system setting. 
  While digital input is detected " 11 " (Capacity 2)  
o  Target temperature for heating and DHW Tank is changed according to the percentage set by Remote 
control setting. However, which setting temperature is change depend on system setting. 
  While digital input is detected " 10 " (Capacity 1) 
o  Setting temperature for heating and Tank is changed. 
However, which setting temperature is change depend on system setting. 
 
 
 
 
128 
If Buffer selection is “YES” 
Room side 
New Target Buffer tank temperature = Current Target Buffer Tank Temperature * Remote Control setting  
(" capacity 1) % 
* Max Min regulation is follow Target Buffer tank temperature control specification 
** No change of Target zone water temperature, only set higher buffer tank temperature. 
 
DHW Tank side 
New Tank Set Temperature = Tank Set Temperature * Remote Control setting for DHW ("Capacity 1) % *  
(Max regulation depend on the tank max setting limit) 
 
If Buffer selection is “NO” 
Room side 
New Target Zone Water Temperature = Current Target Zone Water Temperature * Remote Control Setting 
(*Capacity 1) % 
(Zone 1 and Zone 2 will change according to its own target zone water temperature.) 
(Max regulation depend on the temperature control type select) 
 
DHW Tank side 
New Tank Set Temperature = Tank Set Temperature * Remote Control setting for DHW ("Capacity 1) % 
* (Max regulation depends on the tank max setting limit) 
 
  While digital input is detected " 11 " (Capacity 2) 
o  Setting temperature for heating and Tank is changed. 
However, which setting temperature is change depend on system setting. 
 
If Buffer selection is “YES” 
Room side 
New Target Buffer tank temperature = Current Target Buffer Tank Temperature * Remote Control setting  
(" capacity 2) % 
* Max Min regulation is follow Target Buffer tank temperature control specification 
** No change of Target zone water temperature, only set higher buffer tank temperature. 
 
DHW Tank side 
New Tank Set Temperature = Tank Set Temperature * Remote Control setting for DHW ("Capacity 2) % 
* (Max regulation depends on the tank max setting limit) 
   
If Buffer selection is “NO” 
Room side 
New Target Zone Water Temperature = Current Target Zone Water Temperature * Remote Control Setting 
(*Capacity 2) % 
(Zone 1 and Zone 2 will change according to it's own target zone water temperature.) 
(Max regulation depend on the temperature control type select) 
 
DHW Tank side 
New Tank Set Temperature = Tank Set Temperature * Remote Control setting for DHW ("Capacity 2) % 
* (Max regulation depends on the tank max setting limit) 
** This function is not applicable for Cooling mode. 
12.26 Demand Control (Optional PCB) 
Remote control setting: 
  When Optional PCB connection select 'YES", Demand Control function can select "YES" or "NO". 
 
Purpose: 
  After the demand control select YES, below control will activated. 
o 0-10V 
Demand 
control 
 
0-10V Demand control 
  Demand control is use to reduce the current usage of heat pump unit by third party device. 
 
Control start condition: 
  Select “YES” at Demand control at installer menu. 
  0-10V input for this electrical current control is detected. 
 
129 
Control content: 
  If start condition is fulfilled, indoor will receive the voltage signal from optional PCB. Indoor will send the rate 
value to outdoor unit. 
  Outdoor will change the current limit according to the percentage receive from indoor unit. 
12.27 Holiday Mode 
 Purpose: 
Promotes energy saving by allowing the user to stop the system during holiday and enables the system to 
resume at the preset temperature after holiday. 
 
 Control 
details: 
o  Indoor operate the unit according running mode request. Target temperature will follow holiday setting 
temperature. 
  If heat mode request is receive, Target Water Out Temperature will change according to holiday shift 
temperature set. 
[If heat is set OFF at holiday, unit, water pump and zone control will OFF] 
  If tank mode request is receive, Target Tank Set Temperature will change according to the holiday tank 
shift temperature set. 
[If tank is set OFF at holiday, heat pump and tank heater will OFF] 
o  After days of holiday have been set, heat pump will stop and only resume operation at the end of holiday 
countdown. 
 
 Start 
condition: 
o  Holiday timer set and the holiday timer start 
* The day holiday mode was set is counted as day 1. 
 
 Stop 
condition: 
o  OFF/ON button is pressed. 
o  Holiday timer is reached. 
12.28 Dry Concrete 
 Purpose: 
Provide heat to floor heating panel and dry the wet concrete during installation. 
 
 Setting 
condition: 
o  Dry concrete parameter can be set through remote control under system setup. 
o  Parameters are possible to set up to 99 days with different target set temperature 
 
 Control 
details: 
o  Dry concrete mode will be activates when select ON from service setup. 
o  Once start dry concrete function, remote control will send step 1 setting temperature to indoor unit. 
* This temperature is set at zone temperature. If system is 2 zones, both zone target temperature is set as 
same temperature. 
o  Heat pump will start heat mode operation to room side with received target water outlet temperature. 
* Heat pump will operate according to Heat pump Target Water Temperature. 
o  After complete day 1 setup operation, day 2 data will be send to indoor at 12.00am on the second day. 
o  Each preset data will be send every day until dry concrete mode is complete, unit will turns OFF and exit dry 
concrete function. 
o  3 ways valve and booster heater will turn OFF and 2 ways valve will turns ON. 
 
 Cancel 
condition: 
o  Dry concrete mode is complete and OFF signal is received. 
o  OFF signal is received by pressing OFF/ON button. 
12.29 Flow Sensor 
  The water flow sensor serves as an overload protector that shuts down the unit when the water level is detected 
to below. 
  Abnormal flow detection: 
Sequence 
Abnormal flow 
Normal flow 
Normal case 
Flow rate < 7 l/min or ≥ 69 l/min 
≥ 7 l/min 
During status 2~6 on Anti-freeze deice 
Flow rate ≥ 7 l/min 
< 7 l/min 
130 
13. Protection Control (WH-UD03HE5-1 WH-UD05HE5-1) 
13.1  Protection Control for All Operations 
13.1.1  Time Delay Safety Control 
1  The compressor will not start for three minutes after stop of operation. 
13.1.2  30 Seconds Forced Operation 
1  Once the compressor starts operation, it will not stop its operation for 30 seconds. 
2  However, it can be stopped using control panel at indoor unit. 
13.1.3  Total Running Current Control 
1  When the outdoor running current exceeds X value, the compressor frequency will decrease. 
2  If the outdoor running current does not exceed X value, the compressor frequency will return to normal 
operating frequency. 
3  If the outdoor running current continue to increase till exceed Y value, compressor will stop, and if this occurs 
3 times within 20 minutes, system will stop operation and OFF/ON control panel LED will blink (F16 error 
occurs). 
 
 UD03HE5-1  UD05HE5-1 
Operation Mode 
X (A) 
Y (A) 
X (A) 
Y (A) 
Heating 
10.1 14.8 11.0 14.8 
Cooling 
6.0 14.8 7.5 14.8 
 
A.  DC Peak Current Control 
1  When the current to IPM exceeds set value of 20 A, compressor will stop. Compressor will restart after three 
minutes. 
2  If the set value exceeds again for more than 30 seconds after the compressor restarts, operation will restart 
after two minutes.  
3  If the set value exceeds again for within 30 seconds after the compressor restarts, operation will restart after 
one minute. If this condition repeats continuously for seven times, system will stop operation and OFF/ON 
control panel LED will blink (F23 error occurs). 
13.1.4 Compressor 
Overheating Prevention Control 
  The compressor operating frequency is regulated in accordance to compressor tank temperature as shown in 
below figures. When the compressor tank temperature exceeds 107°C, compressor will stop, and if this occurs 4 
times within 30 minutes, system will stop operation and OFF/ON control panel LED will blink (F20 error occurs). 
 
Compresso r tank temperature
Compresso r = OFF
Compressor
Frequency Reduced
Compressor
Frequency Maintain
Free
108°C
110°C
112°C
97°C
96°C
97°C
 
 
 
 
 
 
 
 
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Panasonic WH-SDC03H3E5-1 / WH-SDC05H3E5-1 / WH-SDC07H3E5-1 / WH-SDC09H3E5-1 / WH-UD03HE5-1 / WH-UD05HE5-1 / WH-UD07HE5-1 / WH-UD09HE5-1 Simplified Service Manual ▷ Download