Clayton Steam Generator model EO-100-1
PAGE 41 / 70
Instruction Manual, doc.nr.: MAN18206 Rev A PSC
Steam
All
F21
Pressure switch
PSZ+A+
Max. pressure limiter - Max. steam pressure
S
O
XS
XS
V+F
12M
12M
Type approved
fail safe
device. Qualified technician
bypasses or increases steam modulating pressure switch to
a set point higher than limit switch in presence of AIA.
Reset to original setting after functional testing!
Steam
All
F31
Temperature switch
TSZ+A+
Max. temperature limiter – Max. steam temperature
S
XS
XS
XS
V+F
6M
6M
Type approved device. A qualified technician decreases the
set point till the switch shuts down the generator.
For high pressure units, TE with special approved controller!
Reset to original setting after functional testing!
Steam
All
F32
Temperature switch
TSZ+A+
Max. temperature limiter – Max. steam temperature
S
O
XS
XS
V+F
6M
6M
Type approved device. A qualified technician decreases the
set point till the switch shuts down the generator.
For high pressure units, TE with special approved controller!
Reset to original setting after functional testing!
Steam
All
F38
Pressure switch
PSZ+A+
Max. pressure limiter - Max. steam pressure
S
O
O
O
V+F
6M
6M
Type approved device. A qualified technician bypasses or
increases steam modulating pressure switch to a set point
higher than limit switch in presence of AIA.
Reset to original setting after functional testing!
Steam
All
PI 38
Pressure indicator
PI
Pressure indicator - Steam pressure gauge
M
X
X
X
V+F
D*
1W*
Device to EN 837-1. *Daily/weekly readings should be
recorded and minimum once every 12 months this reading
shall be compared with a calibrated gauge.
Compare with previous readings and take appropriate action.
Steam
Superheaters
TI
Temperature indicator
TI
Temperature indicators – Superheated steam
temperature gauge
M
X
X
X
V
D
1W
Check and record readings at the same load any time
recordings are made and compare to previous readings
On inlet and outlet of superheater. Compare with previous
readings and take appropriate action.
Steam
All
TI 7
Temperature indicator
TI
Temperature indicator - Steam temperature gauge
M
XM
XM
XM
V
D
1W
Check and record readings at the same load any time
recordings are made and compare to previous readings
Not on models with display & B29. Compare with previous
readings and take appropriate action.
Water
All
F18/F19
Level switch
LSZ+-A+-
Oil level detection/membrane failure pumps with oil
carter
S
OM
XM
XM
V+F
6M
6M
Check horizontal position of float switch. Force it to go in
upward or downward direction till generator shuts down.
Protection against ingress of pump oil in system or water in
oil carter (works in 2 directions!) for pumps with oil carter.
Table 8.7-2: Installation devices for different modes of operation and their periodic testing.
Col 7:
Actions of the provided devices:
A = pressure accessory; C = operation control device; M = monitoring or indicating device; P = Overpressure protection device;
S = Safety cut off and locking (or shut off) device
.
Col 8->10 :
Operation modes to EN12952-7/8
: EN-AT=attended; EN-24=max.24h continuous unattended ; EN-1W= max.1 week unattended
Devices for specific mode:
X=standard installed; XC=supplemental installed by Clayton; XM=generator model dependant; XS=special device; O=optional device (sold as an option); OM=optional device generator model dependant.
Col 11->14 :
Testing
: V=visual check; S=sample analysis.
Max. Interval
(=max. inspection interval for periodic checks unattended mode): D=daily; 1W=weekly; 4W=every 4 weeks; 1M=monthly; 6M/12M=every 6/12 months.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
System
Generator model
PID or
E.diagr.
Ref.(s)
Device type
Type EN
12952-7/8
Protection and/or Operational
requirement or function
Action
EN-AT
EN-24
(O)
EN-1W
(O)
Testing
Max.
Interval
EN-24
Max.
Interval
EN-1W
Test instruction
Notes
Feedwater
All
HAH
Hardness sensor with
controller
HAH+
Monitor feedwater hardness and shut down the heat
supply when prescribed limits are exceeded.
C,M (S)
O
O, XS
O, XS
V+S
D
1W
Take daily (weekly) samples of the feedwater and analyse.
The hardness of the feedwater should be below the
requirements defined in the feedwater manual.
Compare results with monitoring device and previous
readings and take appropriate action.
Feedwater
All
CAH
Conductivity sensor with
controller
CAH+
Monitor feedwater conductivity permanently and shut
down the heat supply when prescribed limits are
exceeded.
C, M (S)
O
O, XS
O, XS
V+S
D
1W
Take daily (weekly) samples of the feedwater and analyse.
The conductivity of the feedwater should be below the
requirements defined in the feedwater manual.
Compare results with monitoring device and previous
readings and take appropriate action.
Feedwater/Conden
sates
All
OP
Oil sensor
Monitor feedwater purity/opacity and shut down the
heat supply when prescribed limits are exceeded.
C, M (S
O
O, X
O, X
V+S
D
1W
Take daily (weekly) samples of the feedwater and analyse.
The conductivity of the feedwater should be below the
requirements defined in the feedwater manual.
Compare results with monitoring device and previous
readings and take appropriate action.
End Chapter - 8
