Caleffi ZSR103 - Z-one™ Relay (three zone)

USD$ 239
SKU: N-426
5 In Stock

Caleffi ZSR103 - Z-one™ Relay (three zone)

MULTI-ZONE PUMP CONTROL.

The ZSR103 is a multi-zone pump and boiler operating control for multiple zone hydronic heating or cooling systems. The ZSR103 interfaces with low voltage thermostats, or any other low voltage controllers having a switching action. The ZSR103 controls up to 3 heating circulator pumps, a primary pump and has LED indicators to provide functional status and easy system troubleshooting.

Caleffi ZSR103 - Z-one™ Relay (three zone)

ZSR106 Internals (ZSR103 is identical minus three zones)

Caleffi ZSR 106 internals

Features

01
Compatible with low voltage 2, 3, or 4 wire thermostats
02
R, W, C and T T COM dual labeling at thermostat terminals
03
Z-oneLink™ unlimited zone expansion
04
120 VAC pump outputs
05
Remote Enable input 24 - 120 VAC
06
Selectable Priority with 1 hour time-out
07
Selectable Post Purge and Exercise
08
Dry contacts for ZONE 1 (DHW), capable of switching line voltage
09
High capacity transformer
10
Large terminal connections
11
Simplified wiring with extra ground terminals
12
Heavy duty sealed relays
13
All pumps fuse protected (with spare fuse)
14
Front LED Lights
15
100% Factory tested with 3 year warranty, ETL Approved

Multiple Thermostat Configuration

Caleffi ZSR 103 multiple thermostat diagram

Specifications

Power Supply:

120 VAC, 50/60 Hz

Transformer Voltage:

24 VAC

Maximum Transformer Load:

12 VA

Electrical Switch Rating Pump Output:

120 VAC, 5A each (20A max combined)

Dry Contact Rating, Zone 1 ES, XX, AUX:

120 VAC max, 2A each

Replaceable Fuses:

Type 2AG, 5A slow blow

Working Temperature Range:

32°F (0°C)—115°F (45°C)

Maximum Humidity:

90% non-condensing

Approvals:

Conforms to UL873 / Certified to CSA C22 No 24, listed by ETL

ZSR103 Dimensions
Heating Load & Heat Loss Design Services

Heating Load & Heat Loss Design Services