Submittal Sheet

Job __________________________
Designer ______________________
Contact _______________________
www.tekmarcontrols.com  of 2 © 20 C 325 - 0/
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Zoning Replaces: New
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Front View
8–1/16”
(204 mm)
11–1/8”
(282 mm)
2–7/8”
(74 mm)
7/16” (11 mm)
CL
7/16”
(11 mm)
1/2” Knock-out
(x 16 back) (x 8 top)
(x 8 bottom) (x 2 side)
Ø 3/16”
(5 mm)
Side View
The tekmarNet
®
4 Zone Expansion Module 325 is designed to provide expansion to a zoning solution for heating systems. It can be
used in applications ranging from baseboard zones, to radiant heating manifolds. This control expands the number of zones provided
with a Zone Manager by up to 6 more zone valves. It is capable of providing power for up to 6 tekmarNet
®
4 or stand alone thermostats,
and energizing their respective 24 V (ac) zones, as well as providing a powered Zone Group Pump (powered end switch) contact to
enable an external device such as a manifold pump.

Enclosure not included! Control must be installed with a tekmarNet
®
Zone Manager for mounting and power. Designed for use with
tekmarNet
®
4 thermostats
 --------------------------
tekmarNet
®
4 compatible
Internal 50 VA transformer
Six powered 24 V zone valve outputs
Powered 20 V zone group pump output
Simple wiring
Time delay for thermal motor zone valves
CSA C US Certified for use in USA
and Canada
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 -----------------------------------------------------
N
Zone Group
 
Pmp C
tN4
Meets Class B:
Canadian ICES &
FCC Part 15
5 A (max)
    
tektra 998-0
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
           
C CW WR RtN4 tN4 C WRtN4
tNt Zone C1 tNt Zone C2 tNt Zone C3
           
C CW WR RtN4 tN4 C WRtN4
tNt Zone C4 tNt Zone C5 tNt Zone C6
 
tN4C
Zn Grp C
C2
C3
On/Off
Zone Group
Pump C Delay
Zone Group
Pump C
C4
C5
C6
C5
C6
C1
C1
C3
C2
C4
Limited power available, see wiring brochure
           
Zone C1 Zone C2 Zone C3 Zone C4 Zone C5 Zone C6
C
Vlv
C
Vlv
C
Vlv
C
Vlv
C
Vlv
C
Vlv
Made in Canada
Six Zone Valves
Literature D325, W325, J325
Control Microprocessor control. This is not a safety (limit) control
Packaged weight . lb. (500 g)
Dimensions 3-5/8” H x 5-3/8” W x 9/6” D (92 x 37 x 4 mm)
Approvals CSA C US, meets Class B: ICES & FCC Part 5
Ambient conditions
Indoor use only, 32 to 22°F (0 to 50°C), RH ≤80% to 88°F
(3°C), down to 50% above 04°F (40°C), Altitude <6560 ft.
(2000 m), Installation Category II, Pollution Degree 2
Power supply Provided by interconnected Zone Manager
Transformer 24 V (ac) 53 VA, fuse T2.5 A 250 V
Zone group pump C
relay
5 V (ac) 5 A
Combined relay load 5 A max
Warranty Limited 3 Year (See D325 for full warranty)