4
Installation Manual
PART 2: GENERAL INFORMATION
(CONT’D)
SOLAR PIPING CONNECTION
When making a connection to the heat exchangers, use Teflon tape and joint compound to prevent
leaks. The connections to the heat exchanger are 1” NPT. Do not apply heat directly to heat exchang-
er thread connection when sweating fittings.
The freeze protection fluid must be rated as non-toxic if used to protect the system from freezing.
Anti-freeze will turn acidic when exposed to prolonged high temperature.
Regular scheduled maintenance must be established to monitor and maintain the proper PH level of the
heat transfer fluid in the system to protect the heat exchanger and other components of the system.
The system components should carry temperature and pressure ratings equivalent to the design of
the solar collector. The ratings for the solar collectors should be verified against the solar collector
manufacturers specifications, depending on the climate where the system is installed. The system
temperatures for the collector and storage tank can be read from the system controllers. Typical tank
operating temperatures can range from the cold supply of 40-80F up to 175F which represents the
high limit of the tank. This will vary depending on the climate where the system is installed. The col-
lector temperature sensor should be 5-20 F above the tank sensor during normal charging opera-
tion. During idle periods, when there is no sun, the collector will read the ambient temperature and
when there is full sun upward to 250° F. The system can be operated down to ambient temperatures
of –60°F using proper concentrations of glycol. Freeze tolerance limits are based upon an assumed
set of environmental conditions. Refer to the DOWFROST Specification sheet in the back of this man-
ual for recommended concentrations.
The differential controller uses 10k ohm thermistors or 1k RTDs, depending on the contoller model,
to monitor the temperature difference between the collector and the Phoenix Solar Water Heater The
controller turns on when the collector is 12–20° F above tank temperature and turns off when the dif-
ferential drops to 4° F.
n
WARNING
Many heat transfer fluids are classified as toxic. Do not introduce heat transfer fluids
into any fittings on the heater except those clearly marked for that purpose.
TO OPEN DRAIN.
LINE SHOULD BE AT
LEAST 3/4" ID AND
PITCHED FOR PROPER
DRAINAGE.
MAXIMUM 2"
PLUS 2" MINIMUM
DIAMETER OF WATER HEATER
CLEARANCE
ZERO
12" MIN.
12" MIN.
CLEARANCE
CLEARANCE
CLEARANCE
24" MIN.
SERVICE CLEARANCE
AUXILIARY CATCH PAN
LP-179-T
REV. 3/22/07
LP-199-J
REV. 6/14/07
Summary of Contents for Phoenix
Page 1: ... Installation Operation Maintenance 2007 Heat Transfer Products Inc ...
Page 31: ...30 WIRING F INTERNAL WIRING PART 6 START UP PROCEDURE CONTINUED Phoenix Connector Diagram ...
Page 41: ...40 MAINTENANCE NOTES ...
Page 42: ...41 MAINTENANCE NOTES ...
Page 43: ...42 MAINTENANCE NOTES ...
Page 44: ... 2008 2007 Heat Transfer Products Inc www htproducts com LP 179 REV 4 5 08 ...
Page 68: ...23 ...
Page 69: ...24 ...
Page 73: ...28 MAINTENANCE NOTES ...
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