12
Circuit Diagrams
F1-3 = main fuses
F4 = overload protection (motor)
F5 = pre fuse (socket)
F6 = control fuse
H3 = operating lamp (heating)
H4 = interference lamp (burner)
H5 = operating lamp (fan))
H6 = interference lamp (fan)
H7 = interference lamp (temp limit.)
H8-10 = control lamps (L1-L3)
H11 = control lamp (N)
K1M = contactor, fan
K2M =
D
-contactor
K3M = Y-contactor
K1T = time relay
K5-6 = contactor, phase sequence relay
K7 = Auxiliary relay
KX5-6 = phase sequence relay
KB = combined regulator
M1 = fan motor
P1 = hour counter
RT = room thermostat socket
S1 = operating switch
S2 = burner-reset
S3 = change over switch (1.+ 2. Step)
STB = safety temperature limiter
TR = temperature control thermostat
TW = burner temperature monitor
X0 = connecting cable with 16A plug
X1 = terminal strip in switch-box
X2 = terminal strip PE
X3 = terminal strip in switch-box (front)
We reserve the right to make modifications in dimensions
and construction in the interests of technical progress.
Summary of Contents for HTL 150-FB
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