Table of Contents
Advertisement
Installation and Operating Instructions
7 Maintenance
DANGER
Hazardous voltage!
•
Before removing any access panels or servicing the water heater make
sure the electrical supply to the water heater is disconnected. Failure to
do this may result in DEATH, SERIOUS BODILY INJURY OR PROPERTY
DAMAGE.
WARNING
Modification, tampering!
•
Tampering with the electrical heating elements, electrical connections,
refrigerant circuit, or temperature and pressure relief valve is dangerous
and may result in serious injury or death. Tampering voids all warranties.
Only properly trained, qualified service personnel should service these
components. Do not attempt to modify or change this water heater in
anyway.
•
Modifying or rewiring internal components by unauthorized persons
will void the warranty, can nullify the Underwriter's Laboratories (UL)
certification of the water heater and could result in property damage or
personal injury for which the manufacturer cannot be responsible.
CAUTION
Personal injury, product damage!
•
Do not use this water heater if any part has been under water. Immediately
call a qualified service technician to replace any part of the control system
which has been under water.
Proper preventative maintenance is required to maintain the warranty and will
significantly extend the life of the water heater.
To obtain service on your water heater when adjustment, repair, or routine
maintenance is required, it is suggested that you first contact your installer,
plumbing contractor or previously agreed upon service agency.
Following maintenance is required:
Required Maintenance
Drain Water Heater
Test T&P Valve
Heating Elements
Anode Rod
Air Filter
Ducting (if installed)
Regular maintenance requirements
Table 20
Utilize F02 and F03 settings to remind the user of maintenance.
24 |
7.1 Drain Water Heater
Scald hazard!
•
NOTICE
Product damage!
•
Drain a few quarts of water to flush out accumulated sediment after the first 6
months then annually thereafter. This will flush sediment deposits from the bottom
of the heater and lengthen the heater's service life.
Foreign material can wash in and unless the water supply is naturally soft (0 to 5
grains hardness), scale or lime deposits will accumulate in the tank. Hard water
scale precipitates at an increasingly high rate in proportion to an increase in water
temperature.
Failure of the tank or heating elements due to accumulated deposits does not fall
within the scope of the warranty.
1.
2.
3.
4.
5.
6.
7.
8.
9.
Frequency
annually
annually
annually
annually
3 months
annually
Figure 16
Bosch GreenTronic 7000 T Hybrid Electric Water Heater - BTC 755003301 A (03.2024)
WARNING
The water drained from the tank may be hot enough to present a SCALD
HAZARD and should be directed to a suitable drain to prevent injury or
damage.
When draining the water heater, make sure that the power source to the
water heater is shut off before draining water. and completely fill with
water before re-energizing.
Disconnect power from water heater.
Attach a hose to the drain valve and connect it to a drain or a bucket.
Close the cold water supply line shut-off valve.
Open drain valve.
Flush until water runs clear.
Open hot water faucet to let air escape.
Re-open cold water supply line shut-off valve.
Close hot water faucet once air has been bled from system.
Make sure the water heater is completely filled before re-energizing.
Draining the water heater
Drain Valve
Hose
(field supplied)
Advertisement
Table of Contents
