Carrier Aquazone 50WD handleiding
Handleiding
Je bekijkt pagina 27 van 84
27
Fig. 24 — UPM Settings DIP Switch (SW1)
OPTION CARD
Units ordered with the water side economizer or hot gas reheat
factory installed options and no factory installed DDC controller
will include the Option Card as standard (see Fig. 25).
The card has three primary functions:
“Boilerless” Electric Heat Control
Boilerless heat control is a means to control an auxiliary electric
heater on units that are connected to a water loop without a reliable
heat injection source. The option card features a potentiometer to
configure a water loop heat setpoint (Item 2, Fig. 25, Heat Set
Point Potentiometer). When the water loop (EWT) drops below
the specified setpoint and there is a call for heating the compressor
will be disabled and the option card sends a 24-v output to enable
the electric heater.
On/Off Hot Gas Reheat Control
Hot gas reheat control is an active means of dehumidification con-
trol. HGRH is enabled when the space temperature is satisfied but
the space humidity is above the desired setpoint. The Option card
energizes the fan, reversing valve, HGRH valve and compressor.
Water Side Economizer Control
Water side economizer control allows for cooling directly with the
source water when the source water temperature is below a con-
figurable setpoint. The expansion card features a potentiometer to
configure a water loop cool setpoint (Item 1, Fig. 25, Cool Set
Point Potentiometer). When the water loop drops below the speci-
fied setpoint and there is a call for cooling the WSE diverting
valve will divert water through the water side economizer coil. If a
cooling call remains for a period of > 10 min the compressor will
be enabled to assist the WSE in meeting the cooling demand.
Table 14 — UPM Fault Blink Codes
BLINKS FAULT FAULT CRITERIA
None None All fault conditions normal.
1 High Pressure
Refrigerant discharge pressure
has exceeded 600 psig.
2 Low Pressure
Refrigerant suction pressure has
fallen below 40 psig.
3
Water Coil Freeze
Condition
Refrigerant temperature to the
water coil has fallen below 25°F
for 120 seconds.
4 Condensate Overflow
Condensate levels in the unit
drain pan are too high.
5 Brown Out
Control voltage has fallen below
18 VAC
6
Air Coil Freeze
Condition
Refrigerant temperature to the air
coil has fallen below 25°F for 120
seconds.
7 Refrigerant Leak Fault
Refrigerant LFL% is more than
15%.
O
1
2
34
5
6
7
N
CTS 208-7 T126
OFF
Bekijk gratis de handleiding van Carrier Aquazone 50WD, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | Carrier |
| Model | Aquazone 50WD |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 15865 MB |
