Size
- 1
- 1
- 1
- 1
- 1
- 1
- 210
- 2
- 2
- 3
- 1
- 1
- 3
- 31
- 4
- 4
- 6
- 3
- 1
- 5
- 22
- 4
- 4
- 5
- 4
- 3
- 4
- 1
- 1
- 1
- 3
- 6
- 4
- 3
- 1
- 3
- 1
- 18
- 19
- 148
- 2
- 1
- 2
- 3
- 3
- 2
- 22
- 1
- 5
- 5
- 4
- 5
- 20
- 4
- 1
- 1
- 1
- 1
- 1
- 22
- 4
- 3
- 2
- 3
- 1
- 1
- 1
- 1
- 154
- 3
- 4
- 1
- 1
- 3
- 2
- 28
- 4
- 4
- 4
- 5
- 2
- 1
- 1
- 27
- 5
- 4
- 6
- 5
- 1
- 1
- 203
- 2
- 9
- 1
- 1
- 10
- 7
- 1
- 2
- 1
- 1
- 2
- 1
- 12
- 17
- 1
- 1
- 2
- 1
- 65
- 2
- 4
- 7
- 1
- 1
- 2
- 1
- 1
- 1
- 54
- 1
- 1
- 1
- 1
- 5
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 6
- 3
- 1
- 4
- 2
- 1
- 1
- 1
- 1
- 1
- 2
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 2
- 4
- 2
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 2
- 2
- 2
- 2
- 2
- 2
- 2
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 2
- 1
- 1
- 2
- 1
- 1
- 2
- 1
- 1
- 1
- 1
- 3
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 2
- 1
- 1
- 2
- 3
- 1
- 1
- 3
- 2
- 3
- 1
- 1
- 1
- 1
- 1
- 1
- 5
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 2
- 1
- 1
- 2
- 1
- 1
- 2
- 1
- 1
- 2
- 1
- 1
- 1
- 1
- 2
- 1
- 2
- 1
- 1
- 1
- 2
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 2
- 2
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 5
- 2
- 2
- 1
- 1
- 1
- 1
- 1
- 2
- 1
- 1
- 1
- 3
- 1
- 1
- 2
- 1
- 4
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 4
- 3
- 1
- 1
- 1
- 1
- 1
- 3
- 1
- 1
- 2
- 1
- 1
- 2
- 1
- 1
- 2
- 1
- 1
- 1
- 1
- 1
- 3
- 2
- 2
- 1
- 1
- 2
- 1
- 1
- 1
- 1
- 1
- 3
- 1
- 2
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 3
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 82
- 13
- 10
- 8
- 3
- 1
- 1
- 1
- 1
- 1
- 1
- 19
- 1
- 1
- 1
- 1
- 3
- 5
- 3
- 2
- 4
- 181
- 40
- 4
- 3
- 5
- 2
- 3
- 3
- 22
- 3
- 3
- 2
- 1
- 3
- 1
- 20
- 1
- 1
- 4
- 4
- 15
- 5
- 1
- 1
- 2
- 2
- 3
- 4
- 3
- 2
- 16
- 3
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 2
- 1
- 2
- 4
- 1
- 1
- 2
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 3
- 1
- 3
- 1
- 2
- 1
- 1
- 1
- 1
- 1
- 2
- 1
- 1
- 1
- 2
- 2
- 1
- 1
- 2
- 2
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 2
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 3
- 2
- 1
- 1
- 1
- 1
- 2
- 2
- 3
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 3
- 2
- 1
- 1
- 1
- 1
- 135
- 13
- 7
- 5
- 12
- 1
- 1
- 31
- 1
- 1
- 1
- 1
- 1
- 2
- 1
- 1
- 1
- 1
- 1
- 1
- 182
- 4
- 27
- 4
- 6
- 7
- 4
- 1
- 2
- 1
- 1
- 1
- 1
- 1
- 9
- 1
- 2
- 10
- 1
- 76
- 5
- 10
- 16
- 5
- 1
- 2
- 1
- 1
- 17
- 2
- 2
- 2
- 1
- 1
- 2
- 1
- 1
- 2
- 1
- 1
- 1
- 1
- 1
- 1
- 2
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 3
- 4
- 1
- 3
- 1
- 2
- 1
- 1
- 1
- 1
- 1
- 2
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 3
- 1
- 2
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 2
- 1
- 1
- 1
- 6
- 1
- 2
- 1
- 1
- 1
- 1
- 1
- 1
- 6
- 1
- 1
- 1
- 112
- 5
- 1
- 2
- 10
- 28
- 3
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 29
- 1
- 2
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 2
- 3
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 2
- 2
- 1
- 2
- 3
- 1
- 1
- 1
- 8
- 1
- 1
- 1
- 2
- 12
- 1
- 34
- 6
- 5
- 6
- 3
- 1
- 1
- 20
- 4
- 1
- 1
- 2
- 2
- 5
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 2
- 1
- 2
- 1
- 1
- 1
- 1
- 1
- 41
- 1
- 1
- 1
- 3
- 5
- 7
- 10
- 5
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 2
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 2
- 1
- 1
- 1
- 2
- 2
- 1
- 3
- 1
- 11
- 1
- 1
- 27
- 1
- 2
- 5
- 2
- 6
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 3
- 1
- 1
- 1
- 1
- 2
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 2
- 1
- 2
- 1
- 1
- 1
- 1
- 2
- 1
- 1
- 1
- 1
- 2
- 2
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
Watts
- 1
- 1
- 1
- 1
- 17
- 2
- 4
- 1
- 1
- 4
- 1
- 1
- 4
- 1
- 1
- 2
- 1
- 1
- 1
- 1
- 1
- 6
- 1
- 4
- 2
- 1
- 1
- 1
- 1
Total Cooling Capacity
- 2
- 9
- 11
- 5
- 8
- 5
- 2
- 3
- 8
- 2
- 4
- 2
- 9
Seer
- 2
- 4
- 3
- 2
- 3
- 1
- 1
- 3
- 3
- 18
- 3
- 4
- 17
- 3
- 13
- 3
- 1
- 1
- 2
- 1
- 21
Price
- (10585)
- (1161)
- (546)
- (265)
- (517)
- (100)
- (46)
- (38)
- (25)
- (134)
Toilet Type
- 20
- 6
- 1
- 3
Bowl Shape
- 21
- 8
Color
- 6
- 12
- 1
- 1
- 1
- 8
- 22
- 1
- 1
- 1
- 1
- 4
- 1
- 2
- 8
- 1
- 1
- 61
- 2
- 1
- 2
- 1
- 1
- 1
- 1
- 2
- 1
- 1
- 5
- 10
- 10
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 12
- 1
- 10
- 1
- 1
- 2
- 1
- 2
- 1
- 1
- 1
- 1
- 1
- 1
- 4
- 1
- 1
- 1
- 1
- 3
- 2
- 1
- 3
- 1
- 2
- 1
- 1
- 1
- 31
- 4
- 1
- 3
- 1
- 1
- 30
- 1
- 2
- 1
- 1
- 2
- 1
- 1
- 1
- 1
- 1
- 1
- 61
- 2
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 2
- 1
- 1
- 1
- 1
- 1
- 1
- 10
- 3
- 20
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 1
- 2
- 1
- 1
- 1
- 1
- 95
- 1
- 2
- 2
- 2
- 2
- 2
- 1
- 1
Gallons per flush
- 1
- 5
- 15
- 17
- 1
Caleffi 3 Zone Expandable Switching Relay w/ Priority (ZSR103)
$204.26
The ZSR series is a zone pump and boiler operating control for multiple zone hydronic heating systems. The ZSR series interfaces with low voltage thermostats, or any other low voltage controllers having a switching action.
1 in stock
- Compatible with 2, 3 and 4-wire thermostats or other low voltage controllers with switching action
- 120 VAC input
- Heavy duty, sealed, fuse protected relay (with spare fuse)
- 1 primary pump output and 3 to 6 (model dependent) zone pump outputs (120 VAC/5 A each)
- Zone priority selectable with 1-hour time-out feature
- Convenient R,W,C and T,T,COM dual labeling at thermostat terminals
- DHW (ZR/ZC) dry contacts rated for switching line voltage
- High capacity 12 VA or 20 VA transformer (model dependent)
- Automatic resettable fuse on 24 V circuit
- Selectable post purge
- Selectable pump exercising
- 3 pump ground terminals for simplified wiring
- Expandable to unlimited number of zones using simple 3-wire connection between controls
- Large screw terminals for ease of wiring
- Front panel LED indicator light for functional status
- ETL certified to CSA and UL standards
Weight | 2 lbs |
---|---|
Attachments | Specifications ZSR |
Brand |
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