< Loop Water Controller >
description
Transcript of < Loop Water Controller >
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< Loop Water Controller >
Updated by:Yap Boon ThiamTechnical EngineerEmail: [email protected]: 9/5/2012
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Controller Layout
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Hardware Outlook
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1. Features
2. Protections
3. Error Code
4. Operations
Contents
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1.1 System On/Off1.2 Pump Control Function1.3 Heat Rejection & Addition Output Stages1.4 Outdoor Air Preset
1.5 Pre-cool / Pre-heat Protection
Features
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1.1 System On/Off
• To Using remote On/Off switch (S1): i) Standard Switch (without Smart Manager) ii) Smart Manager
• To start or stop the operation of the LWC.
The LWC shall function as: i) System On if the remote On/Off switch (S1) is in closed circuit. ii) System Off if the remote On/Off switch (S1) is in opened circuit.
Features
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1.2 Pump Control Function
• Lead pump on
Features
(a) Automatic
• Allows 2 loop circulating pumps with manual or auto lead lag control where operation is interchangeable.
Water flow switch10sec 15sec
Alarm
Lag pump on10sec
Water flow switch15sec
Alarm Off
(b) Manual
• Only one pump can operate.
• If the water problem is verified and fixed, user can reset the remote
switch (S2) and the pump will resume operation. Alternatively it can
be reset by power supply.
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1.3 Heat Rejection & Addition Output Stages
• Total 12 sets of data output can be pre-set as heat addition or heat rejection stages.
• The heat rejection and heat addition temperature setting shall be distributed in sequence and continuous (difference by 1ºC).
Features
1.4 Outdoor Air Reset
• The heat addition ON / OFF limit setting of the system is able to be increased in respond to a drop in the OD air temperature
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Features
1.5 Pre heat & Pre Cool Protection
• To provide protection when the temperature exceeding the too high / low temperature (when system is OFF)
Note: Pre-cool/heat temperature differential: 5ºC (fixed)
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2.1 Low / Too Low Temperature
2.2 High / Too High Temperature
2.3 Loss of Flow
2.4 Sensor Error
Protections
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Protections
2.1 Low / Too Low Temperature
System On
Sound Alarm
System Continue Running
Yes System OffSound Alarm
TW ≤ TLW ?No
TW ≤ TTLW ?
Yes
No
Note:
TW = Water Temp
TLW = Low Water Temp
TTLW = Too Low Water Temp
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Protections
2.2 High / Too High Temperature
System On
Sound Alarm
System Continue Running
Yes System OffSound Alarm
TW ≥ TLW ?No
TW ≥ TTLW ?
Yes
No
Note:
TW = Water Temp
TLW = Low Water Temp
TTLW = Too Low Water Temp
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Protections
2.3 Loss of Flow
10s after System On
Sound Alarm
Lead Pump Off
Lag Pump On
Error System OffSound Alarm
Check water
flow for 15s
Normal
Check water
flow for 15s
Error
Normal
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Protections
2.4 Sensor Error
• If either the Water Supply sensor or OD Air sensor or both of them gives an error signal during the system operates, the alarm will activate 20 times per minute.
• The unit will be Off. All heat rejection and heat addition stages shall be shut down.
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3.1 Error Descriptions
Error Code
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3.1 Error Descriptions
Error Code
Priority Error Description LCD Panel Code Reset Setting System Status
1 Water Sensor Error Water Sensor ERR Manual Shut down
2 Low Water Temperature Water Low Temp Automatic Running
3 High Water Temperature Water High Temp Automatic Running
4 Water Pump 1 Flow Failure Flow Error Pump1 Automatic
5 Water Pump 2 Flow Failure Flow Error Pump2 Automatic
6Too High Water Temperature Shutdown
Hi Temp Shutdown Automatic Shut down
7Too Low Water Temperature Shutdown
Lo Temp Shutdown Automatic Shut down
8 Outdoor Sensor Failure OD Sensor ERR Manual Shut down
Both Happen, Shut down
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4.1 LCD Panel Descriptions
4.2 Main Menu
4.2.1 Status
4.2.2 Setting
4.2.3 Test
4.2.4 Error
4.3 Operation Limits
4.4 Default
Protections
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4.1 LCD Panel Descriptions
Operations
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By pressing the Button ESC
Main Menu
Error
Test
Status
Setting
Operations
4.2 Main Menu
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Status
Output Stage
Temp
Pump
Water Flow: Yes (No)
Pump Run Time
1# : On (Off)
1# : Cool (Heat) On (Off)
2# : On (Off)
Water Temp: xxx°C (°F)OD Temp: xxx°C (°F)
On : xxx Off : xxx°C (°F)
On : xxx Off : xxx°C (°F)2# : Cool (Heat) On (Off)
(3-12#): Unused Pump1: xxhr Pump2: xxhr
4.2.1 Status
Operations
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• Password Protected
• During power ON, the ‘Setting’ can only be viewed.
• The system MUST be turned OFF in order to change the Setting parameters.
Operations
4.2.2 Setting
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Setting
ODA reset Enable (Disable)
Temp
Pump
Output Config
Other
Mode: Auto (Manual) Lead Pump: 1# (2#)
Switch Cycle: xxxhr Pump Switch Check Time: xxxs
Reset Run Time Min Run TM: xxxs
ESC
4.2.2.1 Pump
Operations
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• Mode: - Auto >The lead lag cycle operation is activated - Manual >Only the lead pump is activated
• Lead Pump :1# / 2# >The 1st or 2nd pump can be set as lead pump in the operation
• Switch Cycle: xxxhr>The time for a pump to switch over to another pump
• Pump Switch Check Time: >The time to check the water flow after pump is On
• Reset Run Time:>To reset the record of the total pump run time
• Min Run TM: xxxs>The minimum time required for a pump to operate
4.2.2.1 Pump
Operations
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ESC
Setting
ODA reset Enable (Disable)
Temp
Pump
Output Config
Other
Cool Stage: xx
Heat Stage: xx
Interstage Time: xxs
ESC
Operations
4.2.2.2 Output Config
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• Cool Stage:>To set the number of cool stage for the system operation
• Heat Stage:>To set the number of heat stage for the system operation
• Interstage Time: xxs>The delay time between every stages to start operation
4.2.2.2 Output Config
Operations
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Setting
ODA reset Enable (Disable)
Temp
Pump Output Config
Other
Water Temp Alarm
Temp Hysterysis
High TMP: xxx°C (°F)
Too Hi TMP: xxx°C (°F)
Low TMP: xxx°C (°F)
Too Low TMP: xxx°C (°F)
OD reset TMP: xxx°C (°F)
ESCSet Stage Temp
4.2.2.3 Temp
Operations
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(a) Water Temp Alarm
• High TMP: xxx°C / °F>Water temperature in warning temperature (system still on)
• Too Hi TMP: xxx°C / °F>Maximum allowable water temperature before system shut off
• Low TMP: xxx°C / °F>Water temperature in warning temperature (system still on)
• Too Low TMP: xxx°C / °F>Minimum allowable water temperature before system shut off
• ODresetTMP: xxx°C / °F>The temperature range for heat addition On/Off stages that
responding to the OD air temperature
4.2.2.3 Temp
Operations
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Setting
ODA reset Enable (Disable)
Temp
Pump Output Config
Other
Water Temp Alarm
Temp Hysterysis
Cool Stage: xxx°C (°F)
Heat Stage: xxx°C (°F)
ESC
Set Stage Temp
4.2.2.3 Temp
Operations
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(b) Temp Hysterysis
• Cool Stage: xxx°C / °F>The temperature difference between ON and OFF of a Cool
Stage
• Heat Stage: xxx°C / °F>The temperature difference between ON and OFF of a Heat
Stage
4.2.2.3 Temp
Operations
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ESC
Setting
ODA reset Enable (Disable)
Temp
Pump Output Config
Other
Water Temp Alarm
Temp Hysterysis
Heat Rej: xxx°C (°F)
Heat Add: xxx°C (°F)
ESC
Set Stage Temp
4.2.2.3 Temp
Operations
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(c) Set Stage Temp
• Heat Rej: xxx°C / °F>The first cool stage temperature setting
• Heat Add: xxx°C / °F>The first heat stage temperature setting
4.2.2.3 Temp
Operations
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Setting
ODA reset Enable (Disable)
Temp
Pump
Output Config
Other
4.2.2.4 ODA reset Enable
Operations
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Setting
ODA reset Enable (Disable)
Temp
Pump
Output Config
Other
New Password: xxxx
Temp Unit: °C (°F)
Key Back Light: Enable (Disable)
LCD Back Light: Enable (Disable)
Buzzer: Enable (Disable)
Set Date: DD-MM-YY
Set Time: hh:mm:ss
ESC
ESC
4.2.2.5 Others
Operations
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New Password: xxxx>To set new password. Default password = 8888
• Temp Unit: °C / °F>To set the temperature unit
• Key Back Light: Enable / Disable>To enable / disable the LCD panel key back light
• LCD Back Light: Enable / Disable>To enable / disable LCD panel screen back light
• Buzzer: Enable / Disable>To enable / disable the buzzer on LCD panel
• Set Date: DD-MM-YY>To set the date for the LWC system
• Set Time: hh:mm:ss>To set the time for the LWC system
4.2.2.5 Others
Operations
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Test
1#Pump: On (Off)2#Pump: On (Off)1#Stage: On (Off)2#Stage: On (Off)3#Stage: On (Off)4#Stage: On (Off)5#Stage: On (Off)6#Stage: On (Off)7#Stage: On (Off)8#Stage: On (Off)9#Stage: On (Off)10#Stage: On (Off)11#Stage: On (Off)12#Stage: On (Off)Buzzer: On (Off)Alarm Out: On (Off)
ESC
4.2.3 Test
Operations
• Must be operated only when the system is OFF or dry run
• To check the function ability of the system
• The display returns to default menu after 3 minutes when user stop operating the system or by pressing ESC button
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Error
History
Delete
ESC
4.2.4 Error
Operations
• To store the error records of the system
• Maximum 10 errors can be recorded or check
• Error records can be deleted
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Lower Limit
DefaultUpper Limit
Lower Limit
DefaultUpper Limit
1°C 3°C 5°C 2°F 6°F 10°F6°C 13°C 18°C 42°F 55°F 64°F5°C 10°C 17°C 41°F 50°F 62°F
30°C 40°C 44°C 86°F 104°F 111°F31°C 43°C 45°C 87°F 109°F 113°F1°C 5°C 5°C 2°F 10°F 10°F
Heating Stage 7°C 20°C 43°C 44°F 64°F 109°FCooling Stage 7°C 30°C 43°C 44°F 86°F 109°F
8hr
Stage Temperature
30s
NA
12
60s
168hrAuto
40s
80
15s 15s
410s
0
15sTemp Unit (°C) Temp unit (°F)
Upper LimitLower Limit Default
200s
12
240s
NA88hr
Heat Add/Reject Interstage Timer
Number of heat rejection stage
Pump minimum run time
Pump: Auto/Manual
OD Air Reset Temperature
High Temperature
Low Temperature
Number of heat addition stage
Water flow detection check time after 1st pump On (Pump switch check time)
Pump switch cycle (Auto)
Description
Too High Temperature (emergency shutdown)
Too Low Temperature (emergency shutdown)
Stage differential temperature (hysterisys)
4.3 Operation Limits
Operations
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4.4 Default Setting Reset Switch
• To reset the system setting to default setting
• After the power supply is Off, switch the switch 1 to ON
81
SW1
ON
OFF
Operations
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Thank YouThank You