Оценок - 4, средний балл: 4.5
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Фрагмент инструкции
PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. CONTROL CASE MUST BE CONNECTED TO EARTH GROUND. USE GROUNDING SCREW PROVIDED. B1 IS 1/4 IN. TAB TERMINAL. M1794A 1 2 3 Fig. 9. L8124E in a 24 Vac, gas-fired, forced hot water, tankless, zoned pump system. 1 TO ADDITIONAL R845A RELAYS L2 L1 FOR OTHER ZONES (HOT) 1 2 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. CONTROL CASE MUST BE CONNECTED TO EARTH GROUND. USE GROUNDING SCREW PROVIDED. 2 1 4 3 5 6 ZONE 1 LOW VOLTAGE THERMOSTAT R845A RELAY ZONE 1 ZONE 1 CIRCULATOR 2 3 LOW VOLTAGE C2 C1 B2 B1 R B HIGH LIMIT Z 1K1BRW LOW LIMIT/ CIRCULATOR 1K 2 1 G TTV L8124E 1K2 TR TH THTR 3 B1 IS 1/4 IN. TAB TERMINAL. M8828 GAS VALVE (eg, VR8300) Fig. 10. L8124E multizone system with circulator connections and internal schematic. 95-6571.11 6 L8124A,C,E,L AND M AQUASTAT® RELAYS L8124A,C,E,L AND M AQUASTAT® RELAYS THERMOSTAT B1 IS 1/4 IN. TAB TERMINAL. M8829 L1 (HOT) L2 1 3 1 2 3 2 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. CONTROL CASE MUST BE CONNECTED TO EARTH GROUND. USE GROUNDING SCREW PROVIDED. 2 1 4 3 5 6 ZONE 1 ZONE 2 LOW VOLTAGE THERMOSTAT R845A RELAY ZONE 2 ZONE 2 CIRCULATOR TO ADDITIONAL LINE VOLTAGE R845A RELAYS FOR OTHER ZONES LINE VOLTAGE OIL BURNER RELAY OR GAS VALVE ZONE 1 B2 C2 CIRCULATOR C1 ZR B1R B HIGH LIMIT Z 1K1 RW LOW LIMIT/ CIRCULATOR 1K 2 1 G TTV B L8124L 1K2 ZC Fig. 11. L8124L multizone system with circulator connections and internal schematic. OPERATION High Limit Controller The high limit opens and turns off the burner when the water temperature reaches the setpoint. The high limit automatically resets after the water temperature drops past the setpoint and through the 10°F (6°C) differential. WARNING Explosion Hazard. Can cause serious injury, death or equipment damage. Use this product only in systems with a pressure relief valve. Low Limit and Circulator Controllers On a temperature rise, with the adjustable differential at the minimum setting of 10°F (6°C), the burner circuit (R-B) breaks and the circulator circuit (R-W) makes at the control setpoint. On a temperature drop of 10°F (6°C) below the setpoint, the R-B circuit makes and the R-W circuit breaks. See Fig. 12. At any differential setting greater than 10°F (6°C), the R-B make temperature and the R-W break temperature remain the same (control setting minus 10°F [6°C]). The R-B break and R-W make temperature are the setpoint temperature plus the difference between the differential setting and 10°F (6°C). EXAMPLE: Setpoint of 140°F (60°C), differential set at 25°F (14°C). On a temperature rise, R-B breaks and R-W makes at 155°F (68°C). On a temperature fall, R-B makes and R-W breaks at 130°F (54°C). HIGH LIMIT SETTING LOW LIMIT AND SETTING CIRCULATOR SWITCH BREAKS ON TEMPERATURE RISE. BURNER TURNS OFF. CIRCULATOR OPERATES ON A CALL FOR HEAT. SWITCH MAKES ON TEMPERATURE FALL. BURNER OPERATES ON A CALL FOR HEAT. SWITCH MAKES R-W AND BREAKS R-B ON TEMPERATURE RISE. 1 SWITCH MAKES R-W AND BREAKS R-B ON TEMPERATURE RISE. SWITCH MAKES R-B AND BREAKS R-W ON TEMPERATURE FALL. BURNER IS ON TO MAINTAIN MINIMUM WATER TEMPERATURE. CIRCULATOR IS OFF. 1 WHEN WATER REACHES PROPER TEMPERATURE, THE BURNER SHUTS OFF OR THE CIRCULATOR PUMP STARTS (WHEN CALLING FOR HEAT). M1523...
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