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MULTICAL®
602
38
Kamstrup
A/S
∙
Technical
Description
∙
5512
‐
931_N1_GB_11.2016
6.4
Combined heat/cooling metering
MULTICAL
®
602 is available as e.g. heat meter (Meter type 2xx), cooling meter (Meter type 5xx) or combined
heat/cooling meter (Meter type 3xx or 6xx).
Meter type
Heat meter, (MID module B+D)
2
Heat/cooling meter (MID modules B+D & TS+DK268)
3
Heat meter, National approvals
4
Cooling meter (TS27.02+DK268)
5
Heat/cooling meter
6
Volume meter, hot water
7
Volume meter, cooling water
8
Energy meter
9
Delivery code (language on label etc.)
XX
If MULTICAL
®
602 has been supplied as a combined heat/cooling meter (meter type 6xx), it measures heat energy
(E1) at a positive temperature difference (T1
>
T2), whereas it measures cooling energy (E3) at a negative
temperature difference (T2
>
T1). Temperature sensor T1 (with a red type sign) must be installed in the hydraulic
inlet pipe, whereas T2 (with a blue type sign) is installed in the outlet pipe.
6.4.1
H/C field of activity
If the current T1 exceeds, or equals
hc
only heat energy can be measured. If the current T1 is lower than or equals
hc
only cooling energy can be measured.
hc
is the temperature point used to change between heat and cooling measurement.
hc
is configurable in
temperature range 0.01…160.00
C.
In combined heat/cooling meters
hc
should correspond to the highest occurring inlet pipe temperature in
connection with cooling, e.g. 25
C. If the meter is to be used for ”purchase and sale of heat”,
hc
is set at 180.00
C,
which cancels the
hc
function.
If you want to deactivate the
hc
function permanently, it is necessary to reprogram the meter to meter type 3 by
means of METERTOOL. Note: Changing the meter type requires a total programming of the meter.
The change between heat and cooling measurement involves no hysteresis (
hc
= 0.00K).
hc
is configured by means of METERTOOL (see paragraph 13.2).
hc
is also mentioned as H/C change-over.