Ace Heating Solutions Packaged Storage Water Heater Steam-to-Water..., Руководство по эксплуатации и техническому обслуживанию

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TC744-1
Page 6
Figur
e 8.
Additional infor
mation on controller action and applications.
OPERA
TION (continued)
APPLICATION
HEATING
COOLING
MIXING
DIRECT Acting
Normally OPEN valve
Normally CLOSED valve
Hot piped to Normally OPEN port of valve
Valve OPENS on air failure
Valve CLOSES on air failure
Valve opens to HOT flow
on air failure
REVERSE Acting
Normally CLOSED valve
Normally OPEN valve
Hot piped to Normally CLOSED port of valve
Valve CLOSES on air failure
Valve OPENS on air failure
Valve opens to COLD flow
on air failure
ACTION:
TC744-1
Page 5
Pressure-Reducing
Valve
Place 1/4
″
Pipe Plug here
1/8
″
Nipple
Accritem Controller
16
(5/8
″
)
19
(3/4
″
)
281
(11-1/16
″
)
22 (7/8
″
)
68
(2-11/16
″
)
13
(1/2
″
)
IN
OUT
3/4
″
NPT
Set Screw (holds Accritem in well)
1/2
″
NPT
Brass Union Assembly No. 744-106 Provides pressure-tight connection for installing Accritem in pipe or tank where space does not permit rotation of Accritem body.
AIR Accessory Kit No. 744-107 (Dotted line item not included) Provides materials necessary to reduce the incoming air supply pressure to within the supply pressure range of the Accritem controller. WATER Accessory Kit No. 744-180 (Dotted line items not included) Kit provides materials necessary to convert the Accritem
from
air operation
to
water operation.
Well Dimensions mm (inches)
Accritem Well
Pressure-Reducing Valve (with integral strainer)
1/4
″
IPT
Water Inlet
1/4 x 1/8 Reducing Bushing
1/4 x 1/8 Reducing Bushing
3–50 psi
To Controlled
Device
1/8
″
Nipple
1/4
″
IPT
Strainer
Drip plug
Supply gauge may also be installed in extra outlet of PRV.
1-3/8
″
Hex
ACCESSORIES
Di
m
ensions:
Milli
m
eters (Inches)