CALEFFI AutoFill 5350 Series Guida utente

Technical Characteristics

. Materials: -Body: brass

-Cover: Glass ﬁber reinforced nylon PA66G30

-Control spindle: stainless steel

-Moving parts: brass

-Diaphragm & seals: NBR

-Filter: stainless steel

. Max working pressure:

. Downstream pressure setting range:

365 psi (25 bar)

6–90 psi (0.5–6 bar)

. Factory setting: 15 psi (1.035 bar)

. Max. working temperature:

. Pressure gauge scale:

. Filter mesh size:

140°F (60°C)

0–100 psi (0–7bar)

0.51 mm (35 mesh)

- Environmental: indoor only

.Suitable ﬂuids: water

. Connections: 3/4” & 1"

3/4” & 1"

3/4" & 1"

size 3/4": 4-7/16"

size 1": 4-3/4"

1/8” NPT

Function

The 5350 series AutoFill™ automatic ﬁlling valve is a pressure reducing valve which when installed

on the water inlet piping in closed hydronic systems will maintain system pressure at a set value,

automatically ﬁlling up with water as required. Fast ﬁlls the system to set pressure then automatically

shuts off the water feed. This product is factory pre-set to 15 psi system pressure. To adjust the

set pressure, simply turn the adjustment knob while observing the integral dowmstream pressure

gauge. This product has the characteristic of being pre-adjustable, which means that it can

be adjusted at the right pressure value before the system charging phase. After installation,

the system pressure will automatically adjust itself to the set value and the water feed will stop when

the set pressure is reached. The internal cartridge containing all the controlling components is pre-

assembled as a self-contained unit, to facilitate inspection and maintenance procedures.

Installation, commissioning and servicing instructions

www.calefﬁ.com

CALEFFI

NA38445.03

AutoFill

™

Automatic ﬁlling valve

5350 Series

Product range

5350 Series AutoFill Automatic ﬁlling valve with pressure gauge and pressure setting

adjustment knob with NPT male, Press, and Sweat connections, size 3/4” and 1".

These items are designed for use in closed hydronic systems. Do not use in plumbing applications.

These items do not meet the low-lead plumbing standards of U.S. and Canada.

-NPT male union:

-Sweat union:

-PEX crimp union:

-Press:

-Lay length (press connection):

-Pressure gauge:

SAFETY INSTRUCTION

This safety alert symbol will be used in this manual to draw attention to safety related instructions. When used, the

safety alert symbol means ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED! FAILURE TO

FOLLOW THESE INSTRUCTIONS MAY RESULT IN A SAFETY HAZARD.

CAUTION: All work must be preformed by qualiﬁed personnel trained in the proper application,

installation, and maintenance of systems in accordance with all applicable codes and

ordinances.

CAUTION: If the automatic ﬁlling unit is not installed, commissioned and maintained properly,

according to the instructions contained in this manual, it may not operate correctly

and may endanger the user.

CAUTION: Make sure that all the connecting pipework is water tight.

CAUTION: When making the water connections, make sure that the unit connecting pipework is

not mechanically overstressed. Over time this could cause breakages, with

consequent water losses which, in turn, could cause harm to property and/or people.

CAUTION: Water temperatures higher than 100°F (38°C) can be dangerous. During the

installation, commissioning and maintenance of the automatic ﬁlling valve, take the

necessary precautions to ensure that such temperatures do not endanger people.

Leave this manual for the user.

CAUTION: In the case of highly aggressive water, arrangements must be made to treat the water

before it enters the unit, in accordance with current legislation. Otherwise the unit may

be damaged and will not operate correctly.

Pre-adjustment

AutoFill automatic ﬁlling valves in the 5350 series come standard with

an operating adjustment knob and an integral downstream outlet

pressure gauge. This adjustment knob features rotational operation.

The pressure can be adjusted

continuously, resulting in 7 psi

per revolution, with the value

displayed on the outlet gauge.

100

3 4

psi

bar

100

3 4

psi

bar

100

3 4

psi

bar

100

3 4

psi

bar

WARNING: This product can expose you to chemicals including lead, which is known to the State

of California to cause cancer and birth defects or other reproductive harm. For more

information go to www.P65Warnings.ca.gov.

VENT

Removable self-contained cartridge

The cartridge, containing the diaphragm, strainer, seat, valve port and compensating piston, is pre-assembled as a “self-contained unit” with a cover

and can be easily removed for inspection and maintenance procedures.

1. Filling valve can be installed in either horizontal or vertical position.

Do not install upside down. Do not install outdoors.

2. Calefﬁ recommends the AutoFill 5350 series ﬁlling valve be installed

with separately-purchased shutoff ball valves, code NA39589,

upstream and downstream.

3. The AutoFill 5350 series ﬁlling valve does not have an internal check

valve to prevent reverse ﬂow of water. For this reason, a backﬂow

preventer installed upstream is recommended. Use a Calefﬁ code

573503A, or other brand that complies with applicable codes.

4. The system pressure is factory pre-set to 15 psi (1.035 bar).

a. To properly reset to a higher desired system pressure

(greater than 15 psi), start by opening the inlet shutoff valve while

keeping the outlet shutoff valve closed. Adjust the operating knob

clockwise (+) to increase the system pressure to the desired value

as indicated on the outlet gauge, approximately 7 psi per revolution.

b. To reset to a lower system (lower than 15 psi), turn the operating

knob counterclockwise (-) until it stops turning, 0 psi. Then, open the

inlet shutoff valve while keeping the outlet shutoff valve closed. Adjust

the operating knob clockwise (+) to increase the system pressure to

the desired value as indicated on the outlet gauge, approximately 7

psi per revolution.

5. When the desired system pressure is indicated on the gauge, slowly

open the outlet shutoff valve, ﬁlling the system.

6. During the ﬁlling, in fast-ﬁll mode, the valve will automatically control

the system pressure until it reaches the desired value, without the

need to monitor the ﬁlling operation itself. After installation, the internal

mechanism will automatically control system pressure to the desired

value.

VENT

Installation

When checking, cleaning or replacing the complete regulating cartridge:

1. Isolate the ﬁlling valve.

2. The special construction of the ﬁlling unit does not require any adjustment

of the system pressure, which can be left at the set value.

3. Remove the upper cover. The upper cover is integral with the internal

regulating cartridge.

4. Check and clean the ﬁlter.

5. When the cartridge is screwed back into the body, the pressure setting

will return to the original value.

6. Reopen the shut-off valves. The pressure will return to the original set

value.

Maintenance

3 5

Shut-off valve

Ball valve

Ball stop

Thermometer

Differential pressure

by-pass valve

Flow switch

Zone valve

Pump

FlowCal balancing valve

Flow meter

Temperature probe

Safety thermostat

Regulator

Expansion vessel

3-way valve

Pressure switch

Control pocket

Air separator

Application diagram

VENT

Calefﬁ North America, Inc.

3883 W. Milwaukee Road

Milwaukee, WI 53208

T: 414.238.2360 F: 414.238.2366

7-23-18

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