Baxi Potterton manual General Commissioning, Hydraulic Station, Solar Collector Panels

General Commissioning

All pipework correctly installed, identified and

❑

earth bonded

Solar primary system filled with heat transfer

❑

fluid supplied

System pressure test carried out

❑

Solar expansion vessel charge pressure checked

❑

bar

and set

Air vented from system

❑

Exposed pipework insulated using high-temp and

❑

weather resistant insulation

Panel fixing bracket positions weatherproofed

❑

where necessary

Panel fixings checked and secure

❑

Hydraulic Station

System pressure when cold

bar

Solar primary flow when cold

l/min

Isolating/non-return valves (flow and return) in

❑

operating position

Solar Collector Panels

Panels visually inspected for defects

❑

Collector temperature sensor correctly installed

❑

and secured

Pipe entry points to building weatherproof

❑

SolarDifferentialTemperatureController

Record all operational parameters set

❑

(see separate table)

Pump operation tested in automatic and manual

❑

modes

All cables correctly installed and secured

❑

Suitably fused isolating device installed

❑

Solar Cylinder

Cylinder installed and commissioned in

❑

accordance with cylinder installation instructions

Adjustable in menu

Typical

Current

"Programming"

adjustment

adjustment

Storage tank1:

65°C

Maximum storage temperature

Storage tank1:

7 K

switch-on difference (dTon)

Storage tank1:

3 K

switch-off difference (dToff)

Storage tank2:

90°C

Maximum storage temperature

Storage tank2:

7 K

switch-on difference (dTon)

Storage tank2:

3 K

switch-off difference (dToff)

Minimum pump power on

100%

rotational speed regulation

Switch-on temperature of

40°C

thermostat function

Hysteresis of thermostat function

10 K

2nd temperature differential

65°C

controller maximum temperatureTmax

2nd temperature differential controller

7 K

hysteresis dTmax

Adjustable in menu

Typical

Current

"Basic adjustments"

adjustment

adjustment

Switching on or off the function

0 = off

collector protection

Temperature at which the collector

120°C

protection function is active

Switching on or off the function

0 = off

recooling (only when the collector

protection is on)

Temperature to which the storage

40°C

tank is recooled when collector

protection function is on

Function for time-controlled

0 = off

circulation in operation with

tube collectors

Switching on or off the function

0 = off

energy productivity measurement

Choice of glycol types used

0 = Anro

Mixture ratio of coolants

50%

Litres per impulse of the flowmeter

1.0 L/I

Switching on or off the function

0 = off

antifreezing

Temperature at which the antifreezing

-1°C

is active

Alternative choice of the cooling,

0 = none

thermostat function or the 2nd

temperature differential controller

System type

type 0

Time control in secs

240

Storage priority

1