Instrukcja obsługi Honeywell N34 Series

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N20, N34 Series MN7220, MN7234
NON-SPRING RETURN DAMPER ACTUATOR
20/34 Nm (175/300 lb-in) FOR MODULATING CONTROL
PRODUCT DATA
SPECIFICATIONS
Supply voltage 24 Vac ±20%, 50/60 Hz;
24 Vdc -10...+20%
Nominal voltage 24 Vac, 50/60 Hz; 24 Vdc
All values stated hereinafter apply to operation under
nominal voltage conditions.
Power consumption
MN7220 6 VA / 6 W
MN7234 8 VA / 6 W
Ambient limits
Ambient operating limits -5...+140 °F (-20...+60 °C)
Ambient storage limits -40...+175 °F (-40...+80 °C)
Rela

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N20, N34 SERIES MN7220, MN7234 MODELS M – Electrical motor N – Fail Safe Function (Non-Spring Return) 61 – 24V Floating Control 72 – 24V Modulating Control 20 – 20 Nm (175 lb-in) 34 – 34 Nm (300 lb-in) A – Standard Model 1 – No Feedback 2 – Voltage Feedback Signal 0 – No Internal Auxiliary Switches 2 – Two Internal Auxiliary Switches XX – System Controlled Numbers MN 72 20 A 20XX Fig. 1. Product Identification System Legend for Fig. 2. Setting units and control elements: OPERATION/FUNCTIONS 1. S

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N20, N34 SERIES MN7220, MN7234 Rotary Movement The control signal and the corresponding rotation direction (clockwise or counterclockwise) can be selected using the rotation direction switch (see part Rotation direction switch in Fig. 2), thus eliminating the need to re-wire. To ensure tight closing of the dampers, the actuator has a total rotation stroke of 95°. voltage/current control signal As soon as operating power is applied, the actuator may start dip switch (OFF) to run. When power

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N20, N34 SERIES MN7220, MN7234 The mechanical end limits must be securely fastened in place Voltage/Current Control Signal Selection Dip Switch as shown in Fig. 8. Correct / incorrect tightening of end limits8. In its default shipping position, the voltage/current control Specifically, it is important that they properly mesh with the signal dip switch (see Fig. 4) is set to OFF (= voltage control). rotational angle scales when the screws are tightened. as shown in Fig. 4. Setting it to ON r

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N20, N34 SERIES MN7220, MN7234 IMPORTANT Mounting Position Remove power before detaching the access cover. The actuators can be mounted in any desired orientation (no Once the access cover has been removed, please NEMA2 or IP54 if mounted upside down; see Fig. 10). Choose take care to avoid damaging any of the parts now an orientation permitting easy access to the actuator's cables accessible. and controls. NEMA2 NEMA2 NEMA2 NEMA2 IP54 IP54 IP54 IP54 Fig. 11. Access cover Depending

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N20, N34 SERIES MN7220, MN7234 Wiring Diagrams MN7220/MN7234 24 Vac 24 Vdc 1 ~ 1~ 2 2 3Y 0(2)...10 Vdc 3Y 0(4)...20 mA 5U 0(2)...10 Vdc 5U TERMINAL STRIP 1 Connect via safety ! isolating transformer! MODULATING CONTROL MN7220 WITH SWITCHES S1 S1 24 Vac 24 Vdc S2 1 ~ S2 1~ S3 2 S3 2 0(2)...10 Vdc 3Y S4 TERMINAL STRIP S4 0(4)...20 mA 3Y 0(2)...10 Vdc S5 5U S5 5U S6 S6 Connect via ! isolating AUXILIARY AUXILIARY MODULATING NOTE: Internal auxiliary switches S1 and S4 must b

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N20, N34 SERIES MN7220, MN7234 7 63-2587—1

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N20, N34 SERIES MN7220, MN7234 DIMENSIONS 100 mm (3-15/16”) 95° shaft shaft adapter adapter (reverse) 90 60 30 0 20.6 mm (1-3/16”) 92 mm (3-5/8”) min. 60 mm (2-3/8”) 132 mm (5-3/16”) 230 mm [+/- 0.5 mm] (9-1/16” [+/-1/64”]) 20 mm (25/32”) anti-rotation bracket 7 mm (9/32”) 13 mm (1/2”) 2 mm (5/64”) 5 mm (+0.05, -0.10 mm) 25/128” (+0.002, -0.004”) Automation and Control Solutions Honeywell International Inc. Honeywell Limited-Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Vall