Startup Checklists
160 RT-SVX36K-EN
Table 65. Critical control parameters
Notes:
1. Using the Human Interface (HI), go to SETUP Menu and input setting for parameters listed below.
2. Use the map shown below to determine region of country based on unit site location.
3. Fixed Speed compressor units 8F deadband
Suggested
Parameter
Economizer Settings
Region 1 Region 2 Region 3 Region 4 Region 5 Region 6 Region 7
Supply Air Temperature Control Setpoint 55°F
Supply Air Temperature Deadband 8°F
Supply Air Pressure Setpoint 1.8" w.c.
Supply Air Pressure Deadband 0.1" w.c.
Building Static Pressure Setpoint 0.03" w.c.
Building Static Pressure Deadband 0.04" w.c.
Standby Freeze Avoidance 20%
Exhaust Enable Setpoint 10%
Economizer Minimum Position Setpoint 10%
Fixed Dry Bulb Economizer C/O
Type a (Moist)*
T
OA
> 65°F T
OA
> 65°F T
OA
> 65°F T
OA
> 65°F T
OA
> 70°F T
OA
> 70°F T
OA
> 70°F
Fixed Dry Bulb Economizer C/O
Type b (Dry)*
T
OA
> 75°F
Fixed Dry Bulb Economizer C/O
Type c (Marine)*
T
OA
> 75°F T
OA
> 75°F T
OA
> 75°F
Fixed Reference
Enthalpy Changeover
H
OA
> 28 Btu
Differential Comparative
Enthalpy Changeover
H
OA
> H
RA
Note: See map (Figure 124, p. 164) below for dry bulb changeover.
Examples:
(a) Minneapolis, Minnesota is in “Region 6” and resides in “Moist” subregion, thus designation is 6b. Economizer changeover setting
should be 75°F.
(b) Charleston, South Carolina is in “Region 3” and resides in “Moist” subregion, thus the designation is 3c. Economizer changeover setting
should be 65°F.