SMC Networks HRL Series, Manual

HRL 

Series

Specific Product Precautions 5

Be

 sur

e

 to read t

h

is 

bef

or

e

h

andlin

g

 t

he

p

roducts

.

Refe

r to th

e

b

a

ck

c

o

ve

r 

f

or sa

f

ety instructions. For temperature control

equipment precautions, refer to the “Handling Precautions for SMC Products” and the “Operation Manual” on SMC website:

https://www.smcworld.com

 Refrigerant with GWP reference

Refrigerant 

Global warming potential (GWP)

Regulation (EU) No 517/2014

(Based on the IPCC AR4)

Revised Fluorocarbons 

Recovery and Destruction 

Law (Japanese law)

R134a

1,430

1,430

R404A

3,922

3,920

R407C

1,774

1,770

R410A

2,088

2,090

∗

   This product is hermetically sealed and contains fluorinated 

greenhouse gases (HFC). When this product is sold on the market 

in the EU after January 1, 2017, it needs to be compliant with the 

quota system of the F-Gas Regulation in the EU.

∗

   See specification table for refrigerant used in the product.

Operation Restart Time/Operation and Suspension Frequen

c

y

Caution

1.

  Wait five m

i

nutes or more b

ef

or

e

 r

e

starting o

pe

ration 

after it has been stopped

.

 If t

he

 operation is restarted 

wit

hi

n 

five

 m

i

nutes, the 

p

rote

c

tion 

ci

r

c

uit may act

i-

v

at

e

 and the operation may not start 

p

rop

e

r

l

y

.

2.

 Operation and suspension frequen

c

y should not 

ex-

cee

d 

10

 times 

pe

r day

.

 Fr

e

qu

e

nt

l

y swit

ch

in

g

be-

twe

e

n o

pe

ration and suspens

i

on may r

e

sult 

i

n t

h

e 

malfunction of the refri

g

eration circuit

.

Protection Circuit

Caution

If operating 

i

n the conditions 

bel

ow, the 

p

rote

c

t

i

on 

ci

r

c

u

i

t wi

ll

 acti

v

at

e

 and an op

e

ration may not 

b

e 

per

f

ormed or will stop.

  Power supply voltage is not within the rated voltage range of 

±

10%.

  In case the water level inside the tank is reduced abnormally.

Circulating fluid tempe

rature is too high.

  Compared to the cooling capacity, the heat generation amount 

of the user

’

s equipment is too high.

  Ambient temperature is over 45

°

C.

  Ventilation grille is clogged with dust or dirt

Maintenance

Caution

<

Periodical inspection 

eve

ry one month>

Clean the ventilation grill

e.

If the dustproof 

filter

 of air-cooled type product becomes clogged 

with dust or debris, a decline in cooling performance can result.

In order to avoid deforming or damaging the dustproof 

filte

r, clean 

it with a long-haired brush or air gun.

<

Periodical inspection 

eve

ry three months>

Inspect the circulating fluid.

1. When using tap water or deionized water

Replacement of circulating fluid

Failure  to  replace  the  circulating  fluid  can  lead  to  the 

development  of  bacteria  or  algae.  Replace  it  regularly 

depending on your usage conditions.

<

Periodical inspection during the winter season>

1.

 Make water-removal arran

g

ements be

f

orehand.

If there is a risk of the circulating fluid freezing when the 

product is stopped, release the circulating fluid in ad

vance.

2.

 Contact a pro

f

essional.

This product has an “anti-freezing function” and “warming-up 

function.” Read the Operation Manual carefully, and if any 

additional anti-freezing function (e.g. tape heater) is needed, 

ask for it from the vendor.

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