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Primary Control Parameters
*System water temperature *RESET RATIO * Rise is the temperature rise in
desired at outdoor Ratio of outdoor temperature system when all boilers are at full
temperature of 70°. to water system temperature. rate. (ÐT of system) Range 1 -99
Range 40 - 200 Range: 0.0:1 to 20: and "None" Default value is 20°F
Default value 100°. for constant water temperature
for constant water temperature
(TAR T - Set Point). Default value is 1.0:1.
LEAD LAG, NIGHT SET BACK
* System water temperature desired
at outdoor temperature of 70°.
Default value 100° (Day).
Default value 90°F (Nite).
LEAD LAG, NIGHT SET BACK
Primary Control Parameters
Day Value is used as the set point
when setback is OFF; Nite value,
when setback is ON.
– Sets up boiler and system,
SET – Sets desired water temperature @ 70°F - minimum design
Range 40 -220 (Day), 40 - 220 (Night)
Default value is 100° (Day); 90°F (Nite)
To increase PUSH [+] button to required temperature - suggested setting is 110°F.
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NOTE"S"
This "shadow box" indicates the display
for "Lead Lag, Nite Setaback" feature.
Set Ratio °Rise
DayNiteRatio°R ise
XXX XX X . X: X XX