Submittal Sheet

Job __________________________
Designer ______________________
Contact _______________________
www.tekmarcontrols.com  of 2 © 20 C 326 - 0/
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0/
Zoning Replaces: New

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 326 is designed to provide expansion for a zoning solution for heating systems. It can be
used in applications ranging from baseboard zones, to radiant heating manifolds. This product expands the number of zones provided
with a Zone Manager by up to 3 more zone pumps. It is capable of providing power for up to 3 tekmarNet
®
4 or stand alone thermostats
and energizing their respective 5 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
Three 20 V powered zone pump outputs
One 20 V powered zone group pump
output
Simple wiring
CSA C US Certified for use in USA
and Canada
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 -----------------------------------------------------
N N
Zone C1 Zone C2
   
Pump Pump
tN4
Meets Class B: Canadian
ICES & FCC Part 15
Made in Canada
10 A (max)
    
tektra 999-0
Relay Rating: 5 V (ac) 5 A
N
Zone C3
 
Pump N
Zone Group
 
Pmp C
Power
Zone Group Pump C
Zone C1
Zone C2
Zone C3
           
C CW WR RtN4 tN4 C WRtN4
tNt Zone C1 tNt Zone C2 tNt Zone C3


C tN4
Zn Grp C
C1
C2
On/Off
Zone Group
Pump C
C3
Limited power available, see wiring brochure
H7002B
Three Zone Pumps
Literature D326, W326, J326
Control Microprocessor control. This is not a safety (limit) control
Packaged weight 3.0 lb (360 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
Zone pump C relay 5 V (ac) 5 A
Zone pump C2 relay 5 V (ac) 5 A
Zone pump C3 relay 5 V (ac) 5 A
Zone group pump C
relay
5 V (ac) 5 A
Combined relay load 0 A max
Warranty Limited 3 Year (See D326 for full warranty)