A.O. Smith 30 - Manual (Page 43)

Instruction manual SGS 43
is
3.12.9 Connecting Q/T sensor
Note
You can optionally add a Q/T sensor to the installation. This enables you to
calculate the energy contribution of the system. For more information or to order
the Q/T sensor, please contact your supplier.
1. Connect the 5V to J12-1.
2. Connect sensor S
4
to J12-2.
3. Connect earth to J12-3.
4. Connect the "flow signal" to J12-4.
5. Fit the cable in the strain relief.
6. If you have no more connections to make:
- Fit the cap on the electrical terminal block.
- Fit the plastic covers onto the appliance.
3.13 Checking the supply
pressure and burner
pressure
Note
Before starting the appliance and/or checking the supply pressure and
burner pressure, you must fill (5 "Filling") the appliance.
Caution
Before starting up for the first time or after conversion, you must always
check the supply pressure and burner pressure.
Note
The easiest way to check the gas pressures is by using two pressure
gauges. This procedure assumes that these two gauges are available.
Gas control
Legend
Only applicable numbers are
mentioned.
1. supply pressure test nipple
2. burner pressure test nipple
3. burner pressure regulator
4. burner pressure control cap
5. burner pressure control
adjusting screw