Raypak Raytemp Installation Manual

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INSTALLATION & OPERATING
INSTRUCTIONS
RayTemp™ Hot Water
Energy Management
For Raytherm™ & Hi Delta™
Hot Water Supply Boilers &
Water Heaters
Catalog No. 5000.61E Effective: 09-08-10 Replaces: 02-06-08 P/N 241098 Rev. 6
Page 2
Rev 6 includes the following: Changes to: Fig. 1 on page 6, Fig. 4 on page 8, “20 characters” was “20 lines” on page 10, screen code
index on pages 14-15 Additions: Warnings and notes on page 3, General Safety information on page 4, contact number for Pro­Temp Controls on page 12 Deletions: None
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CONTENTS
WARNINGS 4 GENERAL SAFETY 5
Time/Temperature Relationships in Scalds 5
GETTING STARTED . . . . . . . . . . . . 6
The Big Picture . . . . . . . . . . . . . . . . . . . . . .6
What Comes with the Control . . . . . . . . . . .6
INSTALLING THE CONTROL . . . . . . 7
Attaching the Temperature Sensors . . . . . . .7
Providing 24 VAC Power to the Control . . . .7
Installation Layout . . . . . . . . . . . . . . . . . . . 8
“DIP” Switch Settings on Circuit Board . . . . .9
Connecting the Optional “ELSA” Brand
Modem . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Using the Front Panel to Check Sensors and
Relays . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
CONNECTING A COMPUTER . . . . .10
Building or Buying Interface Cables . . . . . . 11
Installing PTT Software on Your PC . . . . . . 11
Simulated Front Panel Display . . . . . . . . . .11
Reading Logged Data (Not All Models). . . .12
Using Your PC, PTT and Modem to Call a
Control . . . . . . . . . . . . . . . . . . . . . . . . . . .12
PROGRAMMING . . . . . . . . . . . . . . .13
Quick Reference . . . . . . . . . . . . . . . . . . . . 13
First Screen at Power-up . . . . . . . . . . . . . .16
Manual Override . . . . . . . . . . . . . . . . . . . . .16
View Sensors and Relays . . . . . . . . . . . . . .16
Time and Date . . . . . . . . . . . . . . . . . . . . . .16
Celsius / Fahrenheit Scale. . . . . . . . . . . . . .16
Erase Memory / Reset Program . . . . . . . . .16
Security Password (“G” Models Only). . . . .16
Front Panel Menu / Lock . . . . . . . . . . . . . . 16
Time Schedule . . . . . . . . . . . . . . . . . . . . . .17
Supply Temperature . . . . . . . . . . . . . . . . . .17
Return Temperature . . . . . . . . . . . . . . . . . .18
Branch Temperature . . . . . . . . . . . . . . . . . .18
Relay Sequencing (4-Stage Control) . . . . . 18
Relay Sequencing (2-Stage Control) . . . . . 18
Sensor Override Test . . . . . . . . . . . . . . . . .19
Savings Test Setup . . . . . . . . . . . . . . . . . . .19
Savings Test Results . . . . . . . . . . . . . . . . . 19
Sensor Calibration . . . . . . . . . . . . . . . . . . .20
Location Text . . . . . . . . . . . . . . . . . . . . . . .20
Data Modem Setup . . . . . . . . . . . . . . . . . . 20
Fax Modem Setup and Test (“G” Models
Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
WARRANTY . . . . . . . . . . . . . . . . . . 23
Service/Return Authorization Procedure . . 23
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WARNINGS
Pay Attention to These Terms
DANGER:
WARNING:
CAUTION:
NOTE:
NOTE: Minimum 18 AWG, 105°C, stranded wire
must be used for all low voltage (less than 30 volts) external connections to the unit. Solid conductors should not be used because they can cause exces­sive tension on contact points. Install conduit as appropriate. All high voltage wires must be the same size (105°C, stranded wire) as the ones on the unit or larger.
Indicates the presence of immediate hazards which will cause severe person­al injury, death or substantial property damage if ignored.
Indicates the presence of hazards or unsafe practices which could cause severe personal injury, death or substantial property damage if ignored.
Indicates the presence of hazards or unsafe practices which could cause minor personal injury or product or property damage if ignored.
Indicates special instructions on installation, operation, or maintenance which are important but not related to personal injury hazards.
NOTE: Piping diagrams in this manual are not intended to replace an engineered piping system.
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GENERAL SAFETY
Water temperature over 125°F can cause instant severe burns or death from scalds.
Children, disabled, and elderly are at highest risk of being scalded.
See instruction manual before set­ting temperature at water heater.
Feel water before bathing or show­ering.
Temperature limiting valves are available, see manual.
Water
Temp.
Time to Produce
Serious Burn
120°F More than 5 minutes
125°F 1-1/2 to 2 minutes
130°F About 30 seconds
135°F About 10 seconds
140°F Less than 5 seconds
145°F Less than 3 seconds
150°F About 1-1/2 seconds
155°F About 1 second
Table co urtesy of The Shriners Burn Institute
To meet commercial hot water use needs, the high limit safety control on this water heater is adjustable up to 210°F. However, water temperatures over 125°F can cause instant severe burns or death from scalds. When supplying general purpose hot water, the rec­ommended initial setting for the temperature control is 125°F.
Safety and energy conservation are factors to be con­sidered when setting the water temperature on the thermostat. The most energy-efficient operation will result when the temperature setting is the lowest that satisfies the needs of the application.
Water temperature over 125°F can cause instant severe burns or death from scalds. Children, disabled and elderly are at highest risk of being scalded.
Feel water before bathing or showering.
Temperature limiting valves are available.
NOTE: When this water heater is supplying general purpose hot water for use by individuals, a thermo­statically controlled mixing valve for reducing point of use water temperature is recommended to reduce the risk of scald injury. Contact a licensed plumber or the local plumbing authority for further information.
Maximum water temperatures occur just after the heater’s burner(s) have shut off. To determine the water temperature being delivered, turn on a hot water faucet and place a thermometer in the hot water stream and read the thermometer.
Time/Temperature Relationships in Scalds
The following chart details the relationship of water temperature and time with regard to scald injury and may be used as a guide in determining the safest water temperature for your applications.
Table A: Time to Produce Serious Burn
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GETTING STARTED
The Big Picture
This RayTemp control is designed to make recirculat­ing domestic hot water heating systems energy efficient. In a recirculating system, hot water is contin­uously pumped throughout the building. This large loop has many branches which extend to fixtures in the rooms. It is essentially a giant radiator which has tremendous heat loss. By lowering the temperature of this loop it is possible to dramatically reduce this heat loss. The trick is knowing when to lower the tempera­ture without running out of hot water.
With RayTemp, water temperatures are automatically scheduled in anticipation of demand. So for the peak demand in the morning, the water is preheated to a higher temperature. The control does this automatical­ly by recording a seven day profile of demand, and then it uses this information to establish setpoints. The control continually adjusts this setpoint to meet demand, always maintaining the lowest temperature which will fully meet user needs. This operation dra­matically lessens costly heat loss, lime deposits, and increases the life of the system.
The control is preprogrammed with typical settings, making installation very simple. However, the program values can be adjusted to accommodate many types of water heating systems. Output control is provided for up to 4 stages of heat or four heaters. Two standard temperature sensors are connected to the water heat­ing systems at locations called “Supply”and “Return.”
Fig. 2: Hot Water Use Throughout the Day
What Comes with the Control
Before beginning 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 others you will need to provide. Check the following list to verify that you received the following parts.
Included in the box:
1 Control, 10.5” x 8” x 3.5” 1 Panel Cover, Metal, 4” x 7.5” 4 Mounting Screws, 3/4” 2 Temperature Sensors, Copper housing,10 K Ohm
at 25°C 4 Cable Ties,15”, black, -40ºF to 221ºF rated 2 Knockout Connectors, 1/2” to romex 1 Warranty Card 1 Manual 1 24v Grounded Transformer
Other parts you will need:
Fig. 1: Typical Installation
Cable, twisted pair with shield, stranded, 18 AWG. Belden type 8208 (braid shield) or 9552 (2 twisted pairs, foil shield)
Thermal Insulation Tape
Cable Ties
Wire Nuts
Heat Conducting Paste
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INSTALLING THE CONTROL
he control should be mounted on a wall, preferably at
T eye level with AC power as close as possible. Consider the length of cable required for routing along walls, along pipes, and for connecting the temperature sensors.
Notice on the bottom of the control that two of the five knockouts have been removed for routing of cables. If you want to use one or more of the other knockouts, these should be removed before mounting the control onto the wall.
n the sensor end, roll the shielding and tape so it will
O 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,
onduit, motors, spark igniters or other sources of
c high, intermittent voltage or current. EMI (spikes) can disrupt information flow and retention.
Procedure for Installing Supply Sensor in Tank:
1. Install sensor into dry well utilizing thermal con­ductive paste.
2. Install dry well into tank stat opening.
Attaching the Temperature Sensors
To get an accurate reading of the water temperatures, the sensors must be in good thermal contact with the pipe. Follow this procedure when connecting the tem­perature sensors.
Procedure for Connecting Temperature Sensors to Pipes:
1. Remove any existing insulation.
2. Clean the pipe surface using sandpaper.
3. Apply thermal conducting paste to the pipe sur­face.
4. Fasten the sensor tightly to the pipe using the black cable tie.
5. Attach 18 AWG shielded cable to the 6 in. leads using wire nuts or electrical tape.
6. Fasten the cable to the pipe using a second black cable tie.
7. Replace the existing insulation or wrap thermal insulation tape around the pipe. Overlap each
turn and DO NOT STRETCH the tape.
Providing 24 VAC Power to the Control
CAUTION: DO NOT connect power until all wiring
is complete and checked.
CAUTION: DO NOT connect 120 VAC to the RayTemp!!! Resulting damage will void your warranty.
The RayTemp requires an external power transformer connected at terminals one and two. Complete and check all wiring before connecting this transformer. The transformer must be rated for 24 VAC at 16 VA or higher.
When 24 VAC power is applied to the control the LCD display will be blank for a few seconds. During this time the RayTemp is configuring any modem that may be connected. Afterwards, the opening screen appears, which identifies the model number, type of control, software version, and copyright notice.
2-Stage Control
4-Stage Control
Fig. 3: Stages and Sensor Connections
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Installation Layout
Fig. 4: Installation Layout
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“DIP” Switch Settings on Circuit Board
AUTION: Incorrect DIP switch settings may
C
damage the RayTemp! Make all adjustments with ALL power off.
hese switches are factory set and should not need
T adjustment.
Four Stage Control
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. As shown, all four outputs will be the same. Relay #1 is set on SW1 positions 6 thru 10. Relay #2 is set on SW1 posi­tions 1 thru 5. Relay #3 is set on SW2 positions 6 thru
10. Relay #4 is set on SW2 positions 1 thru 5.
These switches are factory set and should not need adjustment.
Fig. 5: DIP Switch Setting on Circuit Board, 4-Stage
The RayTemp can control up to 4 stages:
ig. 6: DIP Switch Setting on Circuit Board, 2-Stage
F
The RayTemp can control up to 2 stages:
• Two single-stage heaters
• One two-stage heater
NOTE: For On/Off and staged connections, consult the water heater manual(s).
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 correct 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 connection in your office before installing the system.
• Four single-stage heaters
• Two two-stage heaters
• One four-stage heater
Two Stage Control
The two 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 10 switches for normally closed dry contacts. As shown, both outputs will be the same. Relay #1 is set on SW1 positions 1 thru 5. Relay #2 is set on SW2 positions 1 thru 5.
If possible, plan ahead, and have the phone line/jack installed about two feet from the heater. Secure the ELSA modem and connect the phone cable (that comes with the modem) from the wall jack to the ELSA modem jack labeled “Line”.
Connect the RayTemp cable 5-423 from the modem’s 8-pin connector to the RayTemp’s “Serial to RJ11” adapter then connect the six-line data cable from the adapter to the RayTemp’s six-pin “RJ11” port (see Fig. 7 on the next page). Plug in the modem’s power trans­former and turn on the power switch. Testing is covered in the next section.
CAUTION: DO NOT connect a live phone line directly to the RayTemp control. Doing so will damage the internal communication circuit!
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MODEM
RayTemp
RJ11 to 9-pin
C
onnector
Active Phone Line
From Wall
Fig. 7: Modem Connections
SE-Sensors Supply 136.4 Desired 135.0 Return 128.2
RT-Relay Status
#1 #2 #3 #4
ON OFF OFF OFF
Using the Front Panel to Check Sensors and Relays
The RayTemp front panel features an alphanumeric LCD display of four rows by 20 characters. 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. The down-arrow screen selects the next screen while the up-arrow key selects the previous screen.
The left-arrow and right-arrow "FIELD" keys move a flashing cursor to select different sections within a screen. The plus and minus "VALUE" keys are used to make changes to a selected field or numeric value. Plus increases the selected number or selects the next option. Minus decreases the selected number or selects the previous option.
Fig. 9: Relay Status Screen (4-Stage Control)
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 does not turn on it may be necessary to increase the optional secondary mechanical aquastat setting a few degrees.
Use a multimeter to troubleshoot if problems persist. Return to the second screen titled “Master On/Off Mode” and put the control in “Bypass”.
The water heaters will now run using the optional sec­ondary mechanical aquastats until programming of the control has been completed, explained in the next sec­tion
Fig. 8: Sensors Screen
Using the down-“WINDOW” key select the “SEN­SORS” screen and verify that each temperature sensor is measuring the correct value. It’s best to use a reliable temperature reading device, like a surface thermocouple or a digital infrared thermometer. Thermostats and mercury thermometers are frequent­ly inaccurate. If the readings disagree by more than two degrees there may be a problem with how the sen­sor is attached. Also check for correct wiring at the terminal block.
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 profiles. "PTT" is the optional software tool for your personal computers that works with RayTemp con­trols. It simulates the front panel and retrieves logged data.
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TT software and interface cables are available direct-
P ly from Raypak. The computer must be able to accept a serial (RS-232) cable.
Building or Buying Interface Cables
Table B lists the cables available from Raypak.
RayTemp to Modem Pin Assignments
RJ-11 Wire color codes: White = 1 Black = 2
ed = 3
R Green = 4 Yellow = 5 Blue = 6
RJ-11 Pin
(RayTemp)
Ground 6 7 Ground
Receive 5 3 Transmit
Transmit 4 2 Receive
DB-25 Pin
(Modem)
Description Part Number
PTT Software Communication for
Windows PC to 70 series control
Direct Connect Communication
Cable Connects a 70 series control
to a PC
Modem Communication Cable
Connects a 70 series control to a
modem
Table B: Cables Available from Raypak
Wiring pin assignments are provided in Tables C and D for building your own cables.
CAUTION: Never plug a telephone line into the RJ­11 connector! The control may be damaged.
RayTemp to PC/Modem Pin Assignments
RJ-11 Wire color codes: White = 1 Black = 2 Red = 3 Green = 4 Yellow = 5 Blue = 6
Table C: Wiring Pin Assignments
RJ-11 Pin
(RayTemp)
Ground 6 5 Ground
Program 2 4 Program
Receive 5 3 Transmit
Transmit 4 2 Receive
PTT
5-424
5-423
DB-9 Pin
(PC/Modem)
able D: Wiring Pin Assignments
T
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. Within a few seconds the main menu, software version I.D., and copyright notice will appear.
Use the arrow keys and enter key to select items from the menu bar at the top of the screen. First check the default options by selecting the “Options” menu item. There are several items that can be changed. Most PC’s have several communication ports. Port 1 is usu­ally for direct connections and Port 2 is usually used for internet modems.
The second option sets the communication speed. The default speed for RayTemp is 9600 Baud. Next is the print quality, 1 = draft mode (fast), 2 = medium, 3 = high resolution (but slow). Press Ctrl-Enter to save your selection.
Simulated Front Panel Display
This “Laptop” selection from the menu bar opens up a window on the PC screen to receive formatted data and program information sent by a RayTemp control, connected at the serial (RS232) port. From the main menu select "LapTop" and press enter. Connect the cable to the RayTemp control and press F1 to begin communication. The screen and keyboard will operate similar to the front panel but with enhanced features to take advantage of the larger screen.
Table E shows the function keys for accessing all RayTemp display and programming features. These keys apply to both the PC and LapTop display, except
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s noted. A screen saver clears the display after five
a minutes. Press F1 thru F5 to restore the screen.
Key Action
F1
F2 Select next screen
F3 Select previous screen
Press two keys for direct access to
ny screen
a
he "Print" option under "History Report" allows you to
T send site reports and graphs to any supported printer. When this item is selected a directory of data files will appear. Point to a file using the arrow keys then press
nter to select the file. A check mark will appear. Place
e check marks next to all data file you wish printed, then
ress Ctrl-Enter to continue. A second screen will
p appear for selecting graphs within a report. Place a check mark (press enter) by each graph you want included in the printed report. Press ESC to start print­ing.
F4 Increase program value
F5 Decrease program value
Space Select next field in a screen
Back Space Select previous field in a screen
F6 Activate full-screen viewing (PC)
Shift+F6 Restore LapTop window (PC)
Table E: Function Keys
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, connect the RayTemp seri­al cable between the RayTemp and your laptop PC. Then select "Retrieve". The RayTemp will transmit logged data to your PC. This takes about one minute at 9600 Baud. A status window will be present while the data is being received.
Using Your PC, PTT and Modem to Call a Control
If this is your first attempt at modem communication with a RayTemp control we recommend that you first try everything in your office using two phone lines. Connect the RayTemp to an external modem and con­nect this modem to one line and your PC modem to another. Next, configure the RayTemp modem as described in the previous section. Make sure that the modem’s auto answer “AA” light is on.
Also, buy a modem cable from Pro-Temp Controls (800-669-8367) — at least for your first installation. This will prevent 80% of your possible problems.
To “get on-line” with the RayTemp, start the PTT soft­ware and select “Options” from the menu bar at the top of the screen. Enter the port number (usually 1 or 2) for the modem connected to your PC and make sure the speed is set to 9,600. Then press Ctrl-Enter and select “TechTerm” from the menu bar. A set of seven windows will appear.
Start entering the phone set up commands:
The logged data consists of a report, seven detailed daily graphs (Monday thru Sunday), and twelve monthly graphs (January thru December). A menu will appear from which you can view any of these graphs. This data will be automatically saved to a disk file, based on the file name in the report data. PTT creates a unique name for each file by setting the last position of the file name prefix.
The codes are 0 thru 9 and then A thru Z. For exam­ple, REDLION.GIX will be saved as REDLION0.GIX, REDLION1.GIX, REDLION2.GIX, etc.
To view an existing history file select "Display", and select a file by pressing enter. After the graphs are pre­pared, a window will appear from which you can select any daily graph or monthly graph to view on the screen.
“ATE1” “ENTER” Return should show “OK”. If not, re­enter.
“AT&F” “ENTER” Return should show “OK”.
“AT&D0” (zero) “ENTER” Return should show “ok”.
For example, to place a call, dial “ATDT5551212” and wait for a “Connect” message (replace the “5551212” with your actual phone number). If the screen is blank, type “ATE1” and try again.
NOTE: The “Modem” section on the menu bar does not work with the RayTemp. Once you see the “Connect” message in the TechTerm window, press F1 and then F6 to begin communication.
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o end the modem session, select the following screen
MC-Modem Control
F4 to Hang-Up
T in the LapTop window.
t's also a good idea to have an actual telephone con-
I nected to the line. Make sure a dial tone is present to verify that the call has been terminated.
PROGRAMMING
Quick Reference
Fig. 10: Modem Hang-Up Screen
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 LapTop window. Another call may then be placed to contact another RayTemp sharing the same phone line. Always use this method to end a modem call to the RayTemp in shared phone-line applications.
Front Panel Key
WINDOW UP & DOWN F1
WINDOW DOWN F2 Select next screen
Laptop or PC
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. These keys apply to the front panel or LapTop display as shown in Table F. A screen saver clears the display after five minutes on the LapTop. Press F1, then F6 to restore the screen
Key
Screen Selected
Returns to first screen, then press two keys for direct access to any screen as listed on the next screen
WINDOW UP F3 Select previous screen
VALUE+ F4 Increase program value
VALUE- F5 Decrease program value
FIELD RIGHT SPACE Select next field in a screen
FIELD LEFT BACK SPACE
F6
SHIFT F6
Table F: Front Panel or Laptop Display Keys
13
Select previous field in a screen
Activate full-screen viewing (PC with PTT only)
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Screen code and description, in sequence of appearance See page
FM S OS RT
ST
RM
DL TL
CK
TS ER MC
PD PERFORMANCE DATA - Savings Analysis 19
DN PN
SL FN
MS SH AD FD
PW PM
RL
PRODUCT IDENTIFICATION - Model, type, and version
E
ENSORS - Displays temperature of each standard sensor
S 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 CLOCK - Display and set time and date TIME SCHEDULE - Seven day, 20 schedule, time clock ERASE/RESET - Selective clear or restart MODEM TEST - Terminate call or test modem or fax
TEXT - Company Name TEXT - Property Name TEXT - Site Location TEXT - Disk File Name
TEXT - Modem Setup TEXT - Modem Disconnect TEXT - Pager Dial-Out TEXT - Fax Dial-Out TEXT - Security Password TEXT - Front Panel Menu TEXT - Relay Logic (1-12)
16 1 16 16 19
16 17 16 21
20 20 20 20
20 20 20 21 16 16 18
6
T1
T8
C0
C1
C2
C3
C4
C5
C6
C7
Screen codes in bold are described in detail on the pages listed.
SELECT - Supply Sensor Offset Not used for this model
SELECT - Maximum Supply Temperature SELECT - Minimum Supply Temperature SELECT - Outside Temperature for Maximum Supply SELECT - Outside Temperature for Minimum Supply SELECT - Night Setback at Maximum Supply SELECT - Night Setback at Minimum Supply SELECT - Morning Boost at Maximum Supply SELECT - Morning Boost at Minimum Supply
14
20 20
17 17 17 17 17 17 17 17
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Screen code and description, in sequence of appearance See page
HL L
W
D DM
DA
R0 R1 R2
E0 E1 E2
B0
S0
S1 S2
HS SP SQ US DD D1
SELECT - Supply High Limit
L
ELECT - Supply Low Limit
S
ELECT - Demand window in minutes
S 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 SELECT - Minimum recovery time SELECT - Recovery sensor response SELECT - # Branch sensors installed
SELECT - Days to Acclimate Residents SELECT - Day of Month for Savings Test SELECT - Old Maximum Supply Temperature
SELECT - # of water heaters SP SELECT - # stages per heater SQ SELECT - Alternating Relay Sequencing US SELECT - Use 24Volt on/off sensing DD SELECT - Deadband (also known as hysteresis) D1 SELECT - Temperature Delay Between Stages
17 1
1 17 17
18 18 18
18
19 19
18 18 18 18 18 18
7
7
LK CU
LG
XX XN
XM
XW
XH
MO
BA
NI
Screen codes in bold are described in detail on the pages listed.
SELECT - +- Keys Locked SELECT - Celsius Units
SELECT - Access Data Logger # SELECT - Fax Graph Max Temp SELECT - Fax Graph Min Temp SELECT - Fax on Day Of Month SELECT - Fax on Day of Week SELECT - Fax on Hour of Day
SELECT - Operating Mode SELECT - Communication BAUD Rate SELECT - Network address number
16 16
21 21 21 21 21
16 20
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First Screen at Power-up
FM - PRODUCT IDENTIFICATION. This screen dis-
lays the model number, type of control, copyright
p notice, and software version number. Press F2 to
elect the next screen in order, or press two keys for
s direct access to any one of the following screens.
Manual Override
MO - SELECT (MODE) - Operating Mode selects one of three states of operation. In Run mode all control functions are operational. In Bypass mode, control is returned to the mechanical controls if provided. In Off mode all systems are shut off and remain off indefinite­ly. In all three modes the RayTemp data logger and modem/fax functions continue to operate.
View Sensors and Relays
SE - SENSORS - Displays the setpoint and current temperature reading from each primary temperature sensor.
OS - OPTIONAL SENSORS - Displays current tem­perature reading from each optional temperature sensor.
et BAUD Rate will reconfigure the serial port accord-
S
ing to the BA screen. If the speed is different, then reset the BAUD rate on your LapTop (garbage charac­ters will appear).
Zero Run Meters set all run-time meters to zero.
Erase History sets all 7-day and 365-day history to -
30.
Reset Program sets all program values to factory default values.
Erase All does all the above (requires 30 seconds).
Security Password
PW - TEXT - Security Password: This screen is used to prevent unauthorized access to the RayTemp, either by modem or direct connection. To use this feature, select a password up to 40 characters and enter it on this screen. Then, all future communication with the control will be blocked until this password is entered. A screen will appear asking for the password. Make a note of your password, since you will not be able to access the control without it! By default, no password is required. To disable password protection erase all text in this field.
RT - RELAY TEST - Displays on/off status of each relay output. Press SPACE or BKSP to a select relay (flashes). Then press F4 to test on, F5 to test off. To return control to the RayTemp, press SPACE or BKSP until no locations flash. The RayTemp will automatical­ly retake control if no manual testing takes place for five minutes.
Time and Date
CK - CLOCK - Displays present time and date. To set, press SPACE, F4 and F5.
Celsius / Fahrenheit Scale
CU - SELECT - For Celsius units, select Yes and all process and program values will be displayed in the Celsius temperature scale. (The default setting of No selects the Fahrenheit scale.)
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.
Front Panel Menu / Lock
PM - TEXT - Front Panel Menu: This option provides for limited access by the building caretaker to a fixed set of screens from the front panel. By default, 13 of the most commonly used screens are accessible from the front panel. They are identified in this screen by their two character access code. This line of text can be modified to select a custom set of screens, in any order, up to 13 screens. If the first character on this line is a space (' ') then this menu system will be disabled and all screens will be accessible from the front panel. To gain access to all of the screens using only the front panel, press both VALUE keys while in the PRODUCT IDENTIFICATION screen. This enters a first character space as described above.
LK - SELECT - +- Keys Locked When Activated:
This option prevents changing of programmed values from the RayTemp front panel + and - keys.
WARNING: This option cannot be deactivated from the control itself. Deactivating this screen
requires either (1) a connection to a PC running the PTT software, or (2) returning the control to the manufacturer to have them reset this option.
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Time Schedule
TS - TIME SCHEDULE: This is a seven-day time
lock. Each line is a program for starting a new period
c (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 new one starts. The day codes are M-F (Monday thru Friday), S-S (Saturday and Sunday), F-S (Friday thru Sunday), and
--- (no days). The recommended setting for initial pro­gramming is --- (no days) on all settings. Changes can be made to accommodate individual schedules.
Supply Temperature
The RayTemp control strategy closely matches water temperature to demand as hot water use varies throughout the day. The setpoint is adjusted based on a demand profile which is recorded for the last seven days. The RayTemp scans this profile and adjusts the setpoint in anticipation of demand. This strategy is complemented with a seven-day time clock which can provide fixed temperatures during certain hours for special requirements, such as laundry.
C0 - SELECT - Maximum Regular Temperature:
During Regular periods the desired temperature will be set between (screen) C0 and C1 according to demand. The time clock schedule determines when Regular takes effect. Default Temp 140°F.
C1 - SELECT - Minimum Regular Temperature: The supply temperature will not be set below this value during Regular periods. Default Temp 130°F.
6 - SELECT - Maximum Extra Temperature: C6
C
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
chedule is activated by the time clock. Default Temp
s
140°F.
C7 - SELECT - Minimum Extra Temperature: See C6 above. Default Temp 130°F.
HL - SELECT - Supply High Limit: If the recovery
temperature or the return temperature is very low, the RayTemp may need to take the supply temperature above the programmed maximum. Regardless of any conditions, the RayTemp will not take the supply or any branch temperature above this high limit value. If the supply temperature exceeds this value by 10°F then alarm dialout will be activated. Default Temp
140°F.
LL - SELECT - Supply Low Limit: The RayTemp will
not schedule the supply temperature lower than this value (or programmed minimum). If the supply temper­ature drops 10°F below this value then alarm dial-out will be activated. Default Temp 120°F.
DW - SELECT - Demand Windows in Minutes: This value sets the time period of demand history to be used in calculating desired temperature. The default value should yield a smooth profile. Decreasing this value will cause faster response to changing demand at the risk of instability. Increasing this value will pro­duce a very smooth desired temperature profile, however the temperature may not rise quickly enough during peak demand periods. The range is from 10 to 90 minutes. Default Value 40.
C2 - SELECT - Maximum Peak Temperature: C2 and C3 become the new maximum and minimum tem­peratures when the time clock schedule is in Peak mode. Default Temp 140°F.
C3 - SELECT - Minimum Peak Temperature: During peak periods the supply temperature will not be set below this value. Default Temp 130°F.
C4 - SELECT - Maximum Laundry Temperature: C4 and C5 will be the maximum and minimum tempera­tures in effect if Laundry is activated by the seven-day time clock. For laundry needs C4 and C5 will usually be set to the same value. Default Temp 140°F.
C5 - SELECT - Minimum Laundry Temperature: See C4 above. Default Temp 140°F.
DM - SELECT - Demand % for Maximum Temperature: This feature provides a means of
increasing temperature in oversized systems which show very little demand. Example: Set to 50%. When demands of 50% or more are encountered, the desired temperature will be at programmed maximum. Below 50% the desired temperature will be proportion­al between maximum and minimum programmed values. The range is from 10 to 100 percent. Default
Value 100.
DA - SELECT - Demand % for ASL Strategy: This
feature automatically adapts to manual changes in the optional, secondary aquastat setting which may occur after installation. This ensures continued savings even if the aquastat is lowered. (ASL is an acronym for Aquastat Set too Low). The strategy works by lowering the setpoint temperature until the RayTemp has regained control. For each 24-hour period that demand exceeds this DA percent, the setpoint is low-
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red by 5°F. Then for each 24-hour period that heater
e demand is less than one half of DA, the setpoint is increased by 1°F until the original value is restored. The default value is 70%. The PERFORMANCE DATA
creen titled Temp Reduced by ASL Strategy will show
s a value other than zero if this strategy is in effect.
efault Value 70.
D
Q - SELECT - Firing Options: Four options for
S
stage sequencing are available. Select number 1, 2, or 3 as follows:
1 No Lead/Lag: Stage 1 of heater #1 always fires
#
first. The remaining stages and heaters will fire in
rder as demand increases.
o
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.
Default is YES.
R1 - SELECT - Minimum Return Temperature: If the
return temperature drops below this value then the return sensor strategy will be activated. Above this value, the strategy will have no effect on desired tem­perature. Default Temp 108°F.
R2 - SELECT - Return Sensor Response: This is a multiplier which increases the desired temperature as the return temperature drops. Example: desired = 130, return = 100, R1 (above) = 102, R2 = 5. The desired temperature will be increased to 140 = 130 + (102-
100) X 5. Default Value is 1.
Branch Temperature - Not Used
B0 - SELECT - # of Branch Sensors Installed: Not used.
Relay Sequencing (4-Stage Control)
#2 24-Hour Rotation: At midnight each day, the firing
order is rotated to the next heater. This distributes the work load equally among all heaters.
#3 Lead/Lag & Rotate: With this option, heater #1
always fires first, then the remaining heaters fire in rotation. Since some flue designs require heater #1 to fire first; this option meets this requirement while still providing limited rotation.
US - SELECT - Use 24volt on/off sensing. Do not use.
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 caus-
es successive output stages to come on according to the deviation to target temperature. D1 activates addi­tional heaters or stages as demand increases. For example with a setpoint of 140°F and a temperature delay of 1°F, stage 1 will fire at 140, stage 2 at 138, stage 3 at 136, etc., assuming 2°F deadband.
RL - TEXT - Relay Logic (1-12): The default value is ++++++++++++.
NOTE: If you select minus (-) and the RayTemp loses power or fails, then the heater or pump will remain off!!! Edit text with SPACE, BACKSP, F4, and F5 to return to a plus setting.
HS - SELECT - # of Heaters: Enter 1 thru 4 for the number of heaters connected to relay outputs 1 thru 4. This allows the RayTemp to correctly sequence heaters and record demand.
SP - SELECT - Stages Per Heater: Enter the number of stages in each heater, from 1 to 4.
Relay Sequencing (2-Stage Control)
HS - SELECT - # of Heaters: Enter 1 or 2 for the num­ber of heaters connected to relay outputs 1 and 2. This allows the RayTemp to correctly sequence heaters and record demand.
SP - SELECT - Stages Per Heater: Enter the number of stages in each heater, 1 or 2.
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Q - SELECT - Firing Options: Four options for
S
stage sequencing are available. Select number 1, 2, or 3 as follows:
1 No Lead/Lag: Stage 1 of heater #1 always fires
#
first. The remaining stages and heaters will fire in
rder as demand increases.
o
es will be frozen at the values you select. To restore
u the actual sensor values, press SPACE or BKSP until Inactive ###.# appears. The RayTemp will automati­cally restore actual sensor values 30 minutes after
xiting this screen.
e
Savings Test Setup
#2 24-Hour Rotation: At midnight each day, the firing
order is rotated to the next heater. This distributes the work load equally among all heaters.
#3 Lead/Lag & Rotate: With this option, heater #1
always fires first, then the remaining heaters fire in rotation. Since some flue designs require heater #1 to fire first; this option meets this requirement while still providing limited rotation.
US - SELECT - Use 24volt on/off sensing. Do not use.
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 caus-
es successive output stages to come on according to the deviation to target temperature. D1 activates addi­tional heaters or stages as demand increases. For example with a setpoint of 140°F and a temperature delay of 1°F, stage 1 will fire at 140, stage 2 at 138, etc., assuming 2°F deadband.
RL - TEXT - Relay Logic (1-12): The default value is ++++++++++++.
NOTE: If you select minus (-) and the RayTemp loses power or fails, then the heater or pump will remain off!!! Edit text with SPACE, BACKSP, F4, and F5 to return to a plus setting.
Sensor Override Test
S1 - SELECT - Day of Month for Savings Test:
Selecting a value other than 0 (default) activates 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. Examples: Values 16 thru 28 will run test for that day only. Value 14 will run test on day 14 and 28. Value 5 will run test on day 5, 10, 15, 20, 25, and 30. One day of testing may not yield accurate results, while four or more days of test­ing will significantly cut into savings. The recommended value is 14 (2 test days).
S2 - SELECT - Old (Maximum) Supply Temperature: Enter the supply temperature prior to
installing the RayTemp if you wish to use the Acclimate feature or Savings Test feature (above). If the preexist­ing control operated at a fixed temperature enter that value here and also in the next screen.
Savings Test Results
PD - PERFORMANCE DATA: From this screen press F4 or F5 to view savings analysis statistics as described below:
Average Energy Savings % displays the average energy savings in percent during the last 365 days. This can be used to determine actual dollars savings and payback period. This feature will not operate unless a day of month for savings test is selected. A flip-flop test then is activated which alternates between RayTemp mode and baseline mode (which has higher energy consumption).
ST - SENSOR TEST: This feature allows you to simu­late any sensor temperature and observe the affect on desired temperature and relay sequencing. Press SPACE or BKSP to select a sensor, then override the actual sensor temperature by pressing F4 or F5. Each key stroke changes the temperature by one degree F. Press Shift+F4 or Shift+F5 to adjust the temperature by one-tenth of a degree (works with PTT). You can change any or all sensors values and then look at other screens. While in this mode all temperature val-
Baseline Heater Run Time % displays average heater demand during Baseline mode for the last 365 days (simulating a fixed setpoint control). This is diagnostic information used in calculating sav­ings.
RayTemp Heater Run Time % displays average heater demand for all heating days except base­line days during the last 365 days. This is diagnostic information used in calculating savings.
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ays in Baseline Mode shows the number of
D
days during the last year that RayTemp was in baseline mode - simulating the preexisting fixed setpoint control.
N - TEXT - Property Name: Accepts entry of site
P
name into RayTemp memory. This information will appear in installation reports. Edit with SPACE, BACK­SP, F4, and F5.
Days in RayTemp Mode shows the number of
ays during the last 365 days when there was
d demand for heat and baseline mode was not in effect.
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 interrupted.
ASL strategy temp reduced a value other than zero indicates that the RayTemp has reduced its setpoint temperature by this amount. This was done to regain control because the existing aquastat setting was low­ered.
Sensor Calibration
The following screens allow you to introduce a fixed positive or negative offset to any temperature input. You will not normally need to make any adjustments here since RayTemp sensors and electronics are very accurate.
The default values in these screens compensate for a small self-heating affect on the thermistor sensor. For small-mass base thermistors, the offset is -2.5°F. For thermistors mounted in housings or attached to a pipe with thermal paste the offset is -1.5°F.
You can check measurement accuracy of RayTemp using fixed resistors and the resistance/temperature chart published by Independent Energy. Before doing this first set each offset below to zero.
T1 - SELECT - Supply Offset for sensors 1 thru 7 T8 - SELECT - Supply Offset for sensors 8 thru 15.
Not used for this model
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.
SL - TEXT - Site Location: Accepts entry of city and
tate names into RayTemp memory. This information
s will appear in installation reports. Edit text with SPACE, BACKSP, F4, and F5.
FN - TEXT - Disk File Name: Accepts entry of a DOS file name into RayTemp memory. The installation report and graphs will be saved in a file under this name (seven characters maximum). Edit text with SPACE, BACKSP, F4, and F5. Only needed when log­ging data to a connected LapTop.
Data Modem Setup
BA - SELECT - Communication Baud Rate: For direct connect, use 9600 Baud. For modem use, set at required 9600. Speed is activated only during power­on reset or from ER ERASE/RESET screen.
MS - TEXT - Modem Setup: Accepts entry of AT com­mand string into RayTemp memory. If a modem is installed, the RayTemp will transmit this command string to configure your modem. Use the Hayes-com­patible modem manual for information about the AT commands. This text will also appear on installation reports. Edit text with SPACE, BACKSP, F4, and F5. Once set, write down at command string.
SH - TEXT - Modem Disconnect: Accepts entry of AT commands into RayTemp memory. If a modem is installed the RayTemp will transmit this command to the modem to terminate the phone connection and prevent the modem from answering another call.
AD - TEXT - Pager Dial-Out: Accepts entry of AT com­mands into RayTemp memory. If a modem is installed the RayTemp will transmit this command to the modem if an alarm condition exists. For example, commands can be selected to dial a pager and display a code to identify the calling RayTemp unit.
Consult your Hayes-compatible modem manual for more information about AT commands. This text will appear on installation reports. Edit text with SPACE, BACKSP, F4, and F5.
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Fax Modem Setup and Test
FD - TEXT - Fax Dial-Out: Use this screen to enter the
hone number of the fax machine which is to receive
p fax alarm messages, installation reports, and/or graph-
cs. Example "ATDT5551212". Edit text with SPACE,
i BACKSP, F4, and F5.
XX - VALUE - Fax Graph Max Temp: This value sets the highest value of the Y-axis temperature scale for all faxed graphs. This item is unrelated to PC graphics. Autoscaling is not supported.
XN - VALUE - Fax Graph Min Temp: This value sets the lowest value of the Y-axis temperature scale for all faxed graphs. This item is unrelated to PC graphics. Autoscaling is not supported.
XM - VALUE - Fax on Day of Month: A complete installation report with graphics of logged data can be automatically faxed, once a month, to any group III fax machine. This value sets the day of the month to trans­mit this data. The report consists of seven pages. The first two pages give all program values and perform­ance data, such as percent savings.
The next three and one half pages are detailed graphs for the last seven days. The last one and one-half pages are trend graphs for the last 12 months. The default day of zero disables this function.
XW - VALUE - Fax on Day of Week: Detailed graphs of logged data for the last seven days can be automat­ically faxed, once a week, to any Group III fax machine. This value sets the day of the week to trans­mit this data. Refer to Table G.
H - VALUE - Fax on Hour of Day: This option sets
X
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 noon. If the first attempt is
ot successful then the RayTemp will make two more
n attempts at 10 minute intervals.
Where multiple RayTemps are calling into one fax machine it's very important to set each control to a dif­ferent day and/or time, otherwise some controls may always get a busy line.
MC - MODEM TEST: This screen provides for modem testing and manual fax transmission of reports and graphics. The following table describes the options in this window. These options are selected using the FIELD keys and activated by pressing the PLUS key. The "Status:" line in this window reports progress of the action as shown in Table I below.
NOTE: The "Pager Alarm" action will always reply "Failed" because the modem does not connect with another modem. In this screen, no actions will retry in the event of transmission failure (press plus (+) again). However when actual alarm conditions occur or when reports are scheduled for automatic transmission the RayTemp will retry. Up to three attempts will be made, per day, at 10-minute intervals.
Value Transmit Day Graphs
0 None None
1 Monday Last 7 days on 3 1/2 pages
2 Tuesday Last 7 days on 3 1/2 pages
3 Wednesday Last 7 days on 3 1/2 pages
4 Thursday Last 7 days on 3 1/2 pages
5 Friday Last 7 days on 3 1/2 pages
6 Saturday Last 7 days on 3 1/2 pages
7 Sunday Last 7 days on 3 1/2 pages
8 Every Day Yesterday full size on 1 page
Table G: Fax on Day of Week Values
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Option Transmit Function Pages
Setup "Modem Setup" command to modem N/A
Disconnect "Modem Disconnect" command to modem N/A
Pager Alarm "Pager Dial-Out" command to modem N/A
Fax Alarm Warning message, identifies location 1
Fax Report Installation report 2
Fax Year Trend graphs for last 12 months 3
Fax Month Trend graph for the 4 month period 1
Fax Week Detailed graphs for the last 7 days 4
Fax Today Detailed graph for one day, today 1
Fax Yesterday Detailed graph for one day, yesterday 1
Fax All Report and all graphs 7
Table H: Transmit Options
Status Description
(blank) No Activity
Sending
Transmission in process. This message may remain for up to 12 minutes depending on the action selected
Data modem or fax modem has successfully completed the
OK
operation. Failed data modem or fax modem did not reply or was unable to complete the action requested
Failed
Failed Data modem or fax modem did not reply or was unable to complete the action required
Table I: Progress of Actions
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WARRANTY
The Raypak RayTemp Control is warranted to be free from defects in material and workmanship for a period 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 EXPRESS­LY SET FORTH HEREIN, WHETHER EXPRESSED OR IMPLIED BY OPERATION OR LAW OR OTHERWISE, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY OF FITNESS.
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, contents, products or per­sons by reason of the installation of the RayTemp Control, or for incidental or consequential losses, damages or expenses, including loss or profits, directly or indirectly arising from this sale, handling or use of the goods, or from any other cause relating thereto, whether such claims are for breach of warranty or negligence.
Any claim by buyer with reference to the Raypak RayTemp Control sold hereunder for any cause shall be deemed waived by buyer unless submitted to Raypak in writing within thirty (30) days from date buyer discov­ered, or should have discovered, any claimed breach. To obtain service under this warranty, call or write:
RAYPAK, INC.
2151 Eastman Avenue
Oxnard, CA 93030
805-278-5300
Service/Return Authorization Procedure
Raypak will not accept a returned unit unless the buyer has received prior authorization to return the unit. If a problem is suspected with the RayTemp control while under warranty, the owner or operator should first call the installing dealer. The dealer should contact Raypak at the above phone number for return authorization. Required information: name of site, location, serial number, reason for return. An authorization number will be issued. Repaired or replacement equipment will be returned to you prepaid.
Warranty Card
Please return this card within 30 days of installation to initiate your warranty and enable us to better serve you
Control Model: ___________________________________ Date Purchased:_________________________ Control Serial Number: _____________________________ Date Installed:___________________________ Water Heater Model Number:_______________________ Water Heater Serial Number:________________ Company Name: __________________________________ Contact Name: _________________________ Company Address: ________________________ City: _________________ State:_____ Zip Code:_______ Installation Location: ______________________________________________________________________ Installation Address: ______________________ City: _________________ State:_____ Zip Code:________
Type of Property: Apt/Condo_______ Hotel/Motel_______ Other ________ RayTemp Dealer: __________________________________ Address: ______________________________ City: _____________________ State: ______ Zip Code: ______________
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www.raypak.com
Raypak Inc., 2151 Eastman Avenue, Oxnard, CA 93030 • (805) 278-5300 • (805) 278-5495
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