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.
2 section 1. Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 the big picture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 what comes with the controll . . . . . . . . . . . . . . . . . . . . ...
3 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. It is essent...
4 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 tha...
5 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, intermit...
6 fig # 8285.2 installation layout.
7 ”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...
Connecting the optional “elsa” brand modem raypak recommends the elsa microlink 56k modem for data communication. This modem will work with 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...
9 using the front panel to check sensors and relays the raytemp front panel features an alphanumeric lcd display of four rows by 20 lines. Six keys are provided to select screens, fields, and make program changes. The up-arrow and down-arrow "window" keys are used to step thru each of the screens. T...
10 section 3. Connecting a computer this section explains how to connect your personal computer to the raytemp. Once connected, you can view all of the front panel screens covered in the previous section. You can also retrieve the recorded data and view color graphs of temperature and demand profile...
11 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 subdire...
12 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 "r...
13 to end the modem session, select the following screen in the laptop window. This screen is used to terminate the call. The raytemp will actually terminate the phone connection and prevent the modem from answering the phone for about five minutes. The message "carrier lost" will appear in the lapt...
14 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...
15 screen code and description, in sequence of appearance see page fm product identification - model, type, and version 17 se sensors - displays temperature of each standard sensor 17 os optional sensors - displays other sensors 17 rt relay test - on/off relay status and manual override 17 st sensor...
16 screen code and description - continued see page hl select - supply high limit 20 ll select - supply low limit 20 dw select - demand window in minutes 20 dm select - demand % for maximum temperature 20 da select - demand % for asl strategy 20 r0 select - # of room sensors installed 21 r1 select -...
17 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 selec...
18 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 (ga...
19 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. Periods end automatically when a n...
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 ...
21 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 install...
22 branch temperature - not used b0 select - # of branch sensors installed not used. Relay sequencing hs select - # of heaters enter 1 thru 4 for the number of heaters connected to relay out- puts 1 thru 4. This allows the raytemp to correctly sequence heaters and record demand. Sp - select - stages...
23 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 additio...
24 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...
25 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. Asl strategy...
26 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...
27 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 this value set...
28 xh value - fax on hour of day this option sets the time of day to transmit fax reports. It 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 no...
29 warranty the raypak raytemp control is warranted to be free from defects in material and workmanship for a peri- od of one year from the date of installation or fourteen months from date of shipment, whichever occurs first. The forgoing warranty is in lieu of and excludes all other warranties not...
Raypak inc., 2151 eastman avenue, oxnard, ca 93030 • (805) 278-5300 • (800) 872-9725 www.Raypak.Com.
