Armitage Shanks Markwik 21 - Page 13

13
9.2 cont. Commissioning process (decision tree FC1)
NOTES:
MWT - Maximum Working
Temperature
Commissioning; Supply Conditions
should be recorded
NOTE:
Factory settings are:
Inlet
t = H - C = 65-15 = 50°C
Hot/Mix
t = 65-41 = 24°C
∆
∆
pass
accept
record mixed temperature
re-set mixed to
41
C +0/-2°C
º
follow setting
or maintenance
instructions
MWT 41
C (+0 / -
º
2ºC) *
check the supply conditions
pressure 0.2 - 5.0 bar & temperature <20
ºC & >55º
record supply conditions
and
∆t for the hot & cold
investigate
YES
YES
YES
NO
NO
NO
fail test
undertake in-field cold water
isolation test - see see 9.5
Achieved 41 +0 / -2°C *
* See section 9.6: setting temperature