Instructions / Assembly

Accessories
UP Series
73
Pump Zone Controls
Specifications
Grundfos Zone Controls are non-networked devices
intended to be used for circulator and boiler control in
hydronic heating systems.
• One, three, and four - expandable to six zones
• Powder coated panel surface
• Multi-panel linking capability
• Selectable priority and freeze protection
• Single service relay for all models
• 2-wire with one 3-wire thermostat capability
• Automatic reset PTC fuse on system 24 VAC
• High capacity 25VA rated transformer
• Multiple knockouts
• Separate X-X & ZC-ZR terminals for “Cold Start” or
“Tankless Coil” boilers
• Models UPZC-3 & UPZC-4/6 only:
- No priority
- Zone 1 priority
- Zone 1 priority w/ 1-hour freeze protection
Note: Dimensions in inches unless otherwise noted.
Approvals
Fig. 1 Grundfos Zone Controls
(with closeup of circuit board)
Dimensions [in]
Model L W D
UPZC-1 5.2 4.3 2.9
UPZC-3, 4/6 9.8 12.1 2.9
TM04 9906 0311 - TM04 9907 0311
TM04 9908 0311
W
L
D
Model UPZC-1 UPZC-3 UPZC-4/6
Part number 96741787 96741788 96741789
Number of zones 1 3 4 to 6
Priority feature No Yes Yes
Priority timer (min.) N/A 60 60
Input power 60 hz 120VAC +/- 10%
Transformer voltage 120VAC, 24V, 15VA, Class 2
Thermostat output (amps) 0.13A
Max. single phase motor rating (per zone) 1/3Hp, 10A, GP
Max. combined load rating:
Output @ 120VAC (amps)
10A 30A
Min./max. ambient temperature range 32 °F (0 °C) / 104 °F (40 °C)
Max. operating humidity range: % RH 0.95
Number of knockouts 4 14
Size of knockouts (in.) 7/8-inch
UPZC dimensions: W x H x D (in.) 5-3/16 x 4-5/15 x 2-15/16 15 x 11-3/8 x 4-7/8
Relay type DPDT Socketed
Approvals UL-873, CAN/CSA C22.2 No. 24
Universal service relay
Part number: 10 ea. 96741790