Related Manuals for Raypak RayTemp Hot Water Energy Management Control
Summary of Contents for Raypak RayTemp Hot Water Energy Management Control
- Page 1 INSTALLATION AND OPERATING INSTRUCTIONS RayTemp™ Hot Water Energy Management Control Catalog No: 5000.61B Effective: 04-15-05 Replaces: 09-01-02 P/N 241098...
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Page 2: Table Of Contents
Section 1. GETTING STARTED ........3 THE BIG PICTURE . -
Page 3: Section 1. Getting Started
Section 1. GETTING STARTED THE BIG PICTURE This RayTemp control is designed to make recirculating domestic hot water heating systems energy efficient. In a recirculating sys- tem, hot water is continuously pumped throughout the building. This large loop has many branch- es which extend to fixtures in the rooms. -
Page 4: What Comes With The Controll
WHAT COMES WITH THE CONTROL Before arriving at the job site to begin the installation, it’s important to first inspect the system and determine what materials you will need. Some parts are included with the control while the oth- ers you will need to provide. Check the following list to verify that you received the following parts. -
Page 5: Providing 24 Vac Power To Control
On the sensor end, roll the shielding and tape so it will not contact a conductor. On the control end, the shield should be grounded. Do not ground both ends of the shielding. Avoid routing wiring on or near other electrical wires, conduit, motors, spark igniters or other sources of high, intermittent voltage or current. -
Page 6: Installation Layout
INSTALLATION LAYOUT Fig # 8285.2... -
Page 7: Dip" Switch Settings On Circuit Board
”DIP” SWITCH SETTINGS ON CIRCUIT BOARD CAUTION: Incorrect DIP switch settings may damage the RayTemp!!! Make all adjustments with ALL power off. The four relay outputs are factory set for normally closed dry contacts. These DIP switches are located behind the terminal block, on the right side. The black dots in the diagram indicate where to set the 20 switches for normally closed dry contacts. -
Page 8: Connecting The Optional "Elsa" Brand Modem
RayTemp and technical support will be provided if this modem is installed with the cor- rect cables. Raypak will not be able to provide support if you use other modem brands or build your own cables. In either case we strongly recommend that you test the RayTemp/modem con- nection in your office before installing the system. -
Page 9: Using The Front Panel To Check Sensors And Relays
If the readings dis- Next select the “RELAY STATUS” screen and manually verify that you can turn each water heater or stage on and off. You do this using the field and value keys. If the heater... -
Page 10: Section 3. Connecting A Computer (Or "Laptop")
RayTemp controls. It simulates the front panel and retrieves logged data. PTT software and interface cables are available directly from Raypak. The computer must be able to accept a serial (RS-232) cable. BUILDING OR BUYING INTERFACE CABLES... -
Page 11: Installing Ptt Software On Your Pc
INSTALLING PTT SOFTWARE ON YOUR PC This section provides instructions for installing PTT communication software. First insert the PTT CD into your CD drive. Double click on the folder Ptt258 then double click on Install. The PTT communication software will then be installed on your C:\GBX subdirectory. To run PTT, type PTT (then press enter) from the C:\GBX subdirectory. -
Page 12: Reading Logged Data (Not All Models)
READING LOGGED DATA Under the "History Report" menu item, logged data can be retrieved from a RayTemp control, saved to a disk file, viewed graphically on screen, or output to a printer. To retrieve history, con- nect the RayTemp serial cable between the RayTemp and your laptop PC. Then select "Retrieve". The RayTemp will transmit logged data to your PC. - Page 13 To end the modem session, select the following screen in the LapTop window. MC-Modem Control F4 to Hang-Up this method to end a modem call to the RayTemp in shared phone-line applications. It's also a good idea to have an actual telephone connected to the line. Make sure a dial tone is present to verify that the call has been terminated.
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Page 14: Section 4. Programming
Section 4. PROGRAMMING QUICK REFERENCE This section describes all the programmable features of the control. You make program changes from the front panel or by using a laptop. For information on connection with a LapTop using PTT software, refer to the previous section. The following keys provide access to all RayTemp display and programming features. - Page 15 Screen code and description, in sequence of appearance PRODUCT IDENTIFICATION - Model, type, and version SENSORS - Displays temperature of each standard sensor OPTIONAL SENSORS - Displays other sensors RELAY TEST - On/Off relay status and manual override SENSOR TEST - Simulates sensor temperatures RUN TIME METERS - Total on-time for each heater or stage DETAIL LOG - Shows history values for seven days TREND LOG - Shows history values for one year...
- Page 16 Screen Code and Description - continued SELECT - Supply High Limit SELECT - Supply Low Limit SELECT - Demand window in minutes SELECT - Demand % for maximum temperature SELECT - Demand % for ASL strategy SELECT - # of Room Sensors Installed SELECT - Desired Daytime Room Temperature SELECT - Desired Nighttime Room Temperature SELECT - Recovery sensor installed...
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Page 17: First Screen At Power-Up
FIRST SCREEN AT POWER-UP FM PRODUCT IDENTIFICATION. This screen displays the model number, type of control, copyright notice, and software version number. Press F2 to select the next screen in order, or press two keys for direct access to any one of the following screens. MANUAL OVERRIDE MO SELECT (MODE) - Operating Mode selects one of three states of operation. -
Page 18: Erase Memory / Reset Program
ERASE MEMORY / RESET PROGRAM ER ERASE/RESET - Press F4 or F5 to select which item will be reset or cleared, then press CTRL+E to confirm each action. Set BAUD Rate will reconfigure the serial port according to the BA screen. If the speed is differ- ent, then reset the BAUD rate on your LapTop (garbage characters will appear). -
Page 19: Time Schedule
TIME SCHEDULE TS TIME SCHEDULE This is a seven-day time clock. Each line is a program for starting a new period (such as Night) on a day (such as M-F) and at a time (such as 6:00 am). Up to 20 lines can be displayed or programmed using the SPACE, F4 and F5 keys. - Page 20 C6 SELECT - Maximum Extra Temperature C6 and C7 are an extra set of temperatures which can be scheduled for any purpose. They will become the maximum and minimum supply temperature if the Extra schedule is activated by the time clock. Default Temp 140°F. C7 SELECT - Minimum Extra Temperature See C6 above.
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Page 21: Return Temperature
RETURN TEMPERATURE The return sensor is used to compensate for seasonal changes in loop heat loss. The strategy may raise the supply/branch temperature in cold weather to ensure that the last rooms on the loop have hot enough water even during low demand periods. R0 SELECT - Return Sensor Installed Select YES if this sensor is connected, otherwise select NO. -
Page 22: Branch Temperature
BRANCH TEMPERATURE - NOT USED B0 SELECT - # of Branch Sensors Installed RELAY SEQUENCING HS SELECT - # of Heaters puts 1 thru 4. This allows the RayTemp to correctly sequence heaters and record demand. SP - SELECT - Stages Per Heater SQ - SELECT Firing Options Four options for stage sequencing are available. -
Page 23: Sensor Override Test
DD SELECT - Differential Increasing DD lengthens the heater burn cycle; decreasing DD improves temperature stability. For instance: desired=140, deadband=1, heater turns off at 141 and on at 139. This deadband applies equally to all stages. D1 SELECT - Temperature Delay Between Stages (In addition to differential setting) This value causes successive output stages to come on according to the deviation to target tem- perature. -
Page 24: Savings Test Setup
SAVINGS TEST SETUP S1 SELECT - Day of Month for Savings Test Selecting a value other than 0 (default) acti- vates the flip-flop savings test. This test will cause a simulation of conditions before the RayTemp was installed - for 24 hours on the day specified every month. The test will run only on the day of month selected AND on multiples of that day. -
Page 25: Sensor Calibration
Total days in service displays the total operating days in modes RUN, BYPASS, and OFF. When 24 VAC power is absent this value will not increase however the clock will still operate. Number of power interruptions value is incremented each time 24 VAC power is removed or inter- rupted. -
Page 26: Location Text
LOCATION TEXT DN TEXT - Company Name Accepts entry of company name into RayTemp memory. This information will appear in installation reports. Edit with SPACE, BACKSP, F4, and F5. PN TEXT - Property Name Accepts entry of site name into RayTemp memory. This informa- tion will appear in installation reports. -
Page 27: Fax Modem Setup And Test ("G" Models Only)
FAX MODEM SETUP AND TEST FD TEXT - Fax Dial-Out Use this screen to enter the phone number of the fax machine which is to receive fax alarm messages, installation reports, and/or graphics. Example "ATDT5551212". Edit text with SPACE, BACKSP, F4, and F5. XX VALUE - Fax Graph Max Temp ture scale for all faxed graphs. - Page 28 XH VALUE - Fax on Hour of Day works in conjunction with XW and XM, above. The RayTemp will attempt to fax the specified data on the specified day (above) and at this specified time. Military time is used with values of 0 to 23, 12 is noon.
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Page 29: Warranty
At its option, Raypak will repair or replace any RayTemp Control which fails to conform to this warranty. Repair or replacement shall be the sole remedy of the buyer under this warranty, and Raypak shall not be liable for any installation, removal or reinstallation costs, or for any damage and/or injury to building, con-... - Page 30 Raypak Inc., 2151 Eastman Avenue, Oxnard, CA 93030 • (805) 278-5300 • (800) 872-9725...