LAARS S8Ext - Installation Manual - Manual (Page 34)

Page 34 LAARS Heating Systems
SPECIFICATIONS:
Voltage Input: . . . . . . . . . 120 VAC 60 Hz
Power Consumption:
. . . . . . . 12 VA Max
Operating Temperature:
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 ° F/-7 ° C to 120 ° F/49 ° C
Operating Humidity: . . . . . . . 20% to 80%
Dimensions: . . . . . . . . . 11"W x 9" H x 3 ¾
Weight: . . . . . . . . . . . . . . . 2.5 pounds
S8 Specifications:
Lead Stage Rotation:
. . . . . . . . . . . . . . . . . . . . . . . Time ( 1 to 999 Hours (41 days)), Manual, First-On/First-Off
S8 Outputs and LEDs: . . . . . . . . . . . . . . . . 11 N.O. S.P.S.T (8 Stages, 1 System, 1 DHW Pump, 1 Combustion Air)
S8 Inputs: . . . . . . . . . . . . . . . . . . 1 Sys(Temp), 1 Outdoor, Return Temp, DHW Temp, Ext Setback/Shutdown, Prove
Stage Modes:
. . . . . . Auto, Standby, Off, On
Standby Time (PID only):
. 1 to 60 minutes
Output Relay Ratings: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Amp inductive at 120 VAC 60 Hz
Add-On S8EXT Panels: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . up two S8EXT Panels using RS485
Temperature Display:
Fahrenheit or Celsius.
Display: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Graphical Alphanumeric (7 rows x 21 char. each)
Temperature Sensor Ranges: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -35 ° F/-37 ° C to 250 ° F/121 ° C
Outdoor Cutoff Range: . . . . . . . . . . . . . . . . . . . . . . . . . . .
20°F/-7°C to 100°F/38°C, ON and OFF
Set Point: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
-10°F/-23°C to 230°F/110°C
External Set Point: . . . . . . . . . . . . . . . . . . . . -10°F/-23°C to 240°F/116°C using XSIG Interface (optional)
Reset Ratio Range (Outdoor Reset Only): . . . . . . ( 8:1) to (1:4) (Outdoor : System Water), and Custom Reset Ratio
Offset Adjustment (Outdoor Reset Only):
. . . . . . . . . . . . . . . . . . . . . . . . -40°F/-22°C to plus 40°F/22°C
Minimum Target (Outdoor Reset Only): . . . . . . . . . . . . . . . . . . . . . . . .
70 ° F/21 ° C to 170 ° F/77 ° C
Maximum Target (Outdoor Reset Only): . . . . . . . . . . . . . . . . . . . . . . . 90 ° F/32 ° C to 240 ° F/116°C
Reaction Time (PID only): . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 to 10 minutes
Minimum Run-Time (PID only): . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 to 60 minutes
Purge Delay (PID only):
. 0.0 to 10.0 minutes
Last Stage Hold (PID only): . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°F/0°C to 30°F/17°C
Throttle Range (OSS only): . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2°F/1°C to 20°F/11°C
Domestic Hot Water Priority Options:
. . . . . .Parallel Piping with Priority or without Priority and Primary Secondary
Pump Run-On:
. . . . . . . . . 0 to 60 minutes
Pump Exercise: . . . . . . . . . . . Yes or No
Schedules: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Day and 1 Night (Setback) settings per day
Night Setback:
. . . . . 0°F/0°C to 80°F/44°C
Power Backup: . . . . . . . .Lithium coin battery, 100 days minimum 5 year replacement (Maintains Clock in power outages).
External Inputs: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Shutdown Input, and Prove Input. (Dry Contacts Only)
Season: . . . . . . . . . . . Winter and Summer.
S8EXT Specifications:
Extension Numbering: . Toggle Switch A or B
LED: . . . 1 Power (Dual Color Green (A)/Red (B)), 1 Communication, 8 Stage Output relays (Dual Color Green (A)/Red (B))
Stage Outputs:
. . . . . . . . . 8 N.O. S.P.S.T.
Output Relay Ratings: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Amp inductive at 120 VAC 60 Hz
Connection to S8 and another S8EXT: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Two RS485