Controller; Installing Function Modules (Accessories); Installing Function Modules In The Boiler - Buderus Logamax plus GB162-L.B. 80 kW Installation Instructions Manual

7
Electrical connections
1 2
Fig. 38 120 VAC Connections
[1] PK
[2] PS
[3] PZ
[4] 120 VAC
PK Terminal - External pump
▶ Connect the external heating or system pump (for situations where
the pump of the Buderus pump group is not used) to the green PK
terminal ( fig. 38). The maximum allowed connected load of the
pump = 100 Watts.
PS Terminal - DHW pump
▶ Connect the DHW pump to the grey PS terminal ( fig. 38).
The maximum allowed connected load of the pump = 100 Watts.
PZ Terminal - DHW circulation pump
▶ Connect the DHW circulation pump to the lilac PZ terminal
( fig. 38). The maximum allowed connected load of the pump
= 100 Watts.
Mains connector
WARNING:
Connecting incoming power
▶ Ground the boiler electrically in accordance with
local codes, or in absence of local codes, with the
National Electrical Code, ANSI/INFPA 70 and/or the
CSA C22.1, Electrical Code.
▶ Install a 120 VAC cable to the boiler mains connection.
7.1.4

Controller

NOTICE
▶ It is not possible to connect more than 1 room
controller.
The following controls can be connected to the boiler:
• Logamatic RC35 room controller,
• Logamatic 4323 controls,
• Control with contact for potential free heat demand
• Error reporting module EM10, 0 – 10 V input (can be used to convert
a 0 – 10 V signal to a modulating signal),
• MCM boiler cascade module up to 16 boilers.
To install additional modules in the boiler, see § 7.2 "Installing function
modules (accessories)", page 26.
Installing an RC35 controller as an outdoor reset control in the
boiler
▶ Open the control panel cover.
▶ Remove the cover [1].
▶ Install the RC35 in the slot [2].
26
3 4
6 720 646157-35.1N
Fig. 39 Installing the room controller
7.2

Installing function modules (accessories)

NOTICE
▶ Refer to the installation instructions of the relevant
function modules for information about installation
and combination possibilities.
The following function modules (accessories) can be connected to the
boiler:
• Heat demand 0-10 V module EM10,
• Error reporting module EM10,
• Switch module WM10,
• Mixing module MM10.
The function modules (accessories) can be installed in 2 ways:
• in the boiler (max. 2), see § 7.2.1.
• outside the boiler, see § 7.2.2.
7.2.1

Installing function modules in the boiler

▶ Loosen the screw (step 1).
▶ Pull open the drawer (step 2).
Fig. 40 Opening the drawer
Logamax plus GB162-L.B. 80 kW / 100 kW – 6720645916 (2014/10)
1
2
6 720 646157-36.1N
2
1
6 720 646157-37.1N