Table 35: SEC parameters for DSH120C units with VAV evaporator fan
Menu/sub-menu
Configured parameter default setting and conditions
Tstat-Only Yes (T-Stat Input Only)
#HtPumpStgs 0 (# of Heat Pumps)
Commission
#RefrigSys 2 (#Refrig Circuits)
OccMode External Occupancy Mode
1
Occupancy status
OffDurUnocc Yes (Off During Unoccupied)
FanCtl-Type Variable (UnitOpMode)
FanOnDlyCool 0sec (CoolFanOnDelay)
Indoor fan
FanOffDlyCool 30sec (CoolFanOffDelay)
DctPrs-Sp 0.5"/w (DuctPres Setpoint)
2
Fan VFD
DctShutdownSp 3.0"/w (DuctPressLimit)
2
#ClgStgs 4 (# of Cooling Stages)
C1-En Yes (C1 24vacOutputEnabled)
C2-En Yes (C2 24vacOutputEnabled)
C3-En Yes (C3 24vacOutputEnabled)
C4-En Yes (C4 24vacOutputEnabled)
Clg-En Yes (Cooling Enabled/Disabled)
LeadLag-En No (EqualCompRuntime)
3
ClgOATCutout-En Yes (LowAmbComp LO)
ClgOATCutout 45.0°F (LoAmbCompLO StPt)
ClgAdapTunEn No (Cooling Auto Tune Enable)
SATCoolLimit-En Yes (Enable SAT Limit)
SATCoolLimit-Sp 45.0°F (SAT Limit SetPt)
LowAmb-En No (Low Ambient Enabled)
4
Cooling
Freeze-Sp 26.0°F (Evap Freeze Protect Setpt)
Htg-En No (Heating Oper Enabled)
5
Details
Heating
Setup
#HtgStgs 0 (# of Heating Stages)
Note:
1. Factory shipped units equipped with Occ jumper on UCB
2. Field set parameter
3. Do not enable low ambient
4. Do not enable LeadLag
5. Field supplied option
61
Model DSH024C–120C Horizontal R-410A Air Conditioning Units C-Generation Smart Equipment Controller
Johnson Controls