32
12.
Give Owner’s Manual and Warranty to homeowner and go over all operations of the
system.
13.
For installation and operation of the instantaneous water heater, please follow the
manufacturer operation manual.
XVI. DRAIN PROCEDURES
1.
Position the flow control valve in the solar by-pass mode. Consult system valve position
drawings.
2.
Attach hoses to both boiler drains.
3.
Open both boiler drains. Make sure hoses drain the water to a proper location.
Caution:
Water may be extremely hot.
4.
After all water has been drained from the collector, close both boiler drains and remove
hoses.
The conventional water heater will continue to provide hot water to the household when the
collector is by-passed and drained.
XVII. MAINTENANCE AND OPERATION
The P
ROGRESSIV
T
UBE
Solar Water Heating system is virtually maintenance free. However,
from time to time, the glazing of the collector may need to be cleaned. The best time to clean
the glass is early morning before the collector gets to hot. Use a household glass cleaner and
soft cloth.
If the homeowner cannot get water to flow from the hot water lines, the problem is probably with
the local water source and not the system. Check the cold water supply.
A homeowner can tell if their system is working by turning on a hot water faucet in the house
and allowing it to run for several minutes. For Direct Systems, this test is very simple. If hot
water comes from the faucet, the system is working. A homeowner with an FSEC approved
two-way system can perform one of the following procedures to check the solar pre-heater part
of the system. After letting the hot water faucet run for a few minutes, by lightly touching,
compare the temperature of the boiler drain (
5B
)
see system drawings in Appendix
on the
supply side of the solar loop piping with the temperature of the boiler drain (
5A
) on the return
side. The boiler drain (
5A
) on the return side should feel significantly hotter than the boiler drain
(
5B
) on the supply side. For a more precise measurement, place a bucket under the boiler
drain (
5A
) on the return line and fill it with water after letting a hot water faucet in the house run
for several minutes. Use a thermometer and compare the difference in the temperature of the
water in the bucket with water coming from a cold-water faucet. Both tests are best performed
during the afternoon of a clear, sunny day.
For SRCC OG 300 certified three-way systems, the proper procedure for checking the system’s
operation is to place the system in the Solar Direct mode of operation. Turn on the hot water
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