Tekmar 325 Zone Expansion Module Manual do Utilizador descarregar pdf (Página 2)

Sequence of Operation

24 V (ac) Powered Outputs

The 325 has an internal transformer that provides

powered outputs for up to six 24 V (ac) zone valves and

six thermostats.

The internal transformer has limited power available. Refer

to the Job Records to determine the load on the transformer.

If the load is too large for the transformer, refer to the Wiring

Brochure to add additional power to the system.

115 V (ac) Powered Outputs

The 325 has an internal relay that provides a powered

output for a zone group pump.

Refer to the Job Records to determine the allowable loads

for this relay.

Sequence of Operation

When a thermostat calls for heat, the Zone LED turns on

and power is supplied to the zone valve.

•

• If the Zone Group Pump DIP switch is set to On and the

Zone Group Pump Delay DIP switch is set to Off, the

Zone Group Pump LED and relay turn on.

•

• If the Zone Group Pump DIP switch is set to On and the

Zone Group Pump Delay DIP switch is set to On, the

Zone Group Pump LED and relay turn on three minutes

after the zone valve is powered.

•

• If the Zone Group Pump DIP switch is set to Off, the

Zone Group Pump LED and relay are not turned on.

115 V (ac) L & N

Zone Group

89 90

Pmp C

tN4

Meets Class B:

Canadian ICES &

FCC Part 15

5 A (max)

Zone Expansion Module 325

tektra 998-01

Relay Rating: 115 V (ac) 5 A

24 V (ac) Fuse: T2.5 A 250 V

Power

Zone Group Pump C

H7001B

Zone C1

Zone C2

Zone C3

Zone C4

Zone C5

Zone C6

51 52 53 54 55 56 57 58 59 60 61 62

CCWWRRtN4 tN4 C WRtN4

tNt Zone C1 tNt Zone C2 tNt Zone C3

63 64 65 66

67 68 69 70 71 72 73 74

CCWWRRtN4 tN4 C WRtN4

tNt Zone C4 tNt Zone C5 tNt Zone C6

75 76

tN4C

Zn Grp C

On/Off

Zone Group

Pump C Delay

Zone Group

Pump C

Limited power available, see wiring brochure

77 78 79 80 81 82 83 84 85 86 87 88

Zone C1 Zone C2 Zone C3 Zone C4 Zone C5 Zone C6

Vlv

Made in Canada

1 2 3 4

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