Fisher 399A - Page 3

Type 399A-161-112
2
• Replace the Type 161Y or 161YM information in "Table 3. Outlet (Control) Pressure Ranges and Typical Proportional
Bands" on page 4 with the following information:
TOLIP
EPYT
LORTNOCTELTUO
EGNARERUSSERP
DNABLANOITROPORP
)1(
2TATESROTCIRTSERHTIW
GNIRPSLORTNOCTOLIP
traP
rebmuN
roloC
edoC
,retemaiDeriW
)mc(sehcnI
,htgneLeerF
)mc(sehcnI
YA161
ro
MYA161
.c.wsehcni-51ot6
gisp2.1ot5.0
gisp5.2ot2.1
)rabm73ot51(
)rab380,0ot430,0(
)rab71,0ot380,0(
.c.whcni-1
)2(
.c.whcni-1
)2(
gisp5.0
)2(
)rabm5,2(
)2(
)rabm5,2(
)2(
)rab430,0(
)2(
220729356B1
250720735B1
220721735B1
bardevilO
wolleY
neergthgiL
501.0
411.0
651.0
)762,0(
)092,0(
)693,0(
57.3
13.4
31.4
)35,9(
)59,01(
)94,01(
gisp5.4ot5.2
gisp7ot5.4
)rab3,0ot71,0(
)rab5,0ot3,0(
gisp5.0
)2(
gisp5.0
)2(
)rab430,0(
)2(
)rab430,0(
)2(
220722735B1
250723735B1
eulbthgiL
kcalB
781.0
812.0
)574,0(
)455,0(
49.3
31.4
)0,01(
)94,01(
• Replace the Type 161Y and 161YM references in Installation section beginning on page 5 with Type 161AY and Type
161AYM respectively.
• Replace the Type 161Y or 161YM information in "Table 6. 161 Series Pilot Pressure Ratings" on page 7 with the
following information:
EPYTTOLIP
REBMUN
DNAYDOB
ESACGNIRPS
LAIRETAM
MGARHPAID
YLBMESSA
YA161EPYTROFERUSSERPTELNIMUMIXAM
)TSUAHXE(DEELBDNATELNIMUMIXAMDNA
MYA161EPYTROFSERUSSERP
EPYTROFERUSSERPTELTUOMUMIXAM
ERUSSERPESNESMUMIXAMDNAYA161
MYA161EPYTROF
MYA161roYA161norielitcuDllA)rab3,01(gisp051)rab3,01(gisp051
• Replace the Type 161Y and 161YM captions in "Figure 3. Installation Schematics" on page 8 with Type 161AY and
Type 161AYM respectively.
• Add the following paragraph to the Pilot Adjustment section on page 15:
The Type 161AY and 161AYM pilots have been adjusted at the factory to provide approximately the reduced pressure
requested on the order. The pressure setting may be adjusted to a value within the outlet pressure range shown in
table 3. To adjust the pressure setting, perform the following steps (key numbers are referenced in figure 23):
To avoid personal injury, property damage, or equipment damage caused by bursting of pressure containing
parts or explosion of accumulated gas, never adjust the control spring to produce an outlet pressure higher
than the upper limit of the outlet pressure range for that particular spring. If the desired outlet pressure is
not within the range of the control spring, install a spring of the proper range.
1. Remove the closing cap (key 22).
2. Turn the adjusting screw (key 35) clockwise to increwase outlet pressure or counterclockwise to decrease
outlet pressure.
3. After making the adjustment and replace the closing cap. The closing cap can be wired to the spring case assem-
bly (key 3) to discourage tampering.