Table of Contents
Technical Data
Outdoor Sensor
3
7738003452
2–5/8"
(67 mm)
8-1/16"
(204 mm)
1–9/16"
(40 mm)
Universal Sensor
2
7738003451
3/4" (19 mm)
3/8"
Supplied with
(9.5 mm)
1' (300 mm) wire
Models & Part Numbers - Included Parts
Item
Part #
1
7738003450
2
7738003451
3
7738003452
Limited Warranty
Limited Warranty The liability of Bosch under this warranty is lim-
ited. The Purchaser, by taking receipt of any Bosch product ("Prod-
uct"), acknowledges the terms of the Limited Warranty in effect at
the time of such Product sale & acknowledges that it has read &
understands same.
The Bosch Limited Warranty to the Purchaser on the Products sold
hereunder is a manufacturer's pass-through warranty which the
Purchaser is authorized to pass through to its customers. Under
the Limited Warranty, each Bosch Product is warranted against
defects in workmanship & materials if the Product is installed &
used in compliance with Bosch's instructions, ordinary wear &
tear excepted. The pass-through warranty period is for a period of
twenty-four (24) months from the production date if the Product
is not installed during that period, or twelve (12) months from the
documented date of installation if installed within twenty-four (24)
months from the production date.
The liability of Bosch under the Limited Warranty shall be limited to, at
Bosch's sole discretion: the cost of parts & labor provided by Bosch to
repair defects in materials &/or workmanship of the defective product;
or to the exchange of the defective product for a warranty replacement
product; or to the granting of credit limited to the original cost of the defec-
tive product, & such repair, exchange or credit shall be the sole remedy
available from Bosch, &, without limiting the foregoing in any way, Bosch
is not responsible, in contract, tort or strict product liability, for any other
losses, costs, expenses, inconveniences, or damages, whether direct,
indirect, special, secondary, incidental or consequential, arising from
ownership or use of the product, or from defects in workmanship or mate-
rials, including any liability for fundamental breach of contract.
The pass-through Limited Warranty applies only to those defective Prod-
ucts returned to Bosch during the warranty period. This Limited Warranty
does not cover the cost of the parts or labor to remove or transport the
defective Product, or to reinstall the repaired or replacement Product, all
such costs & expenses being subject to Purchaser's agreement & war-
ranty with its customers.
Any representations or warranties about the Products made by Pur-
chaser to its customers which are different from or in excess of the
BTC461503101C | 6720810369 (2018/03)
Front View
1
Pr i m Pum p
Com b
CH
DHW
Fuel
20V
m A
5V
Vdc
Gnd
EM S
Out
Pr i m
Com
Fl owPr oof
Ai r Pr oof
Cal l
Tank Cal l
Sw i t ch
dc
( +)
dc
( +)
( - )
( +)
door
Sup
Out I n Out I n
I n
1
2
3
4
5
6
7
8
9
10
11
12 13
14
15
16 17
18
Fl ow
Pr essur e
Sensor
Sensor
M eet s Cl as s B: Canadi an
ICES & FC
C P a r t 15
Pr i m Pum p Fl ow Pr oof / O
Com b Ai r Pr oof / O
O / Exer ci s e
Set back / O
47 48
49 50
51 52
53 54
55 56
57 58
59 60 61 62 63 64
Pr i m ar y Pr i m ar y
Pum p
Pum p
Boi l er 1
Boi l er 2
+
-
+
-
P1
P2
M od
St age 1 St age 2
M od
St age 1 St age 2
7/16"
(11 mm)
CL
7/16" (11 mm)
Description
Heatronic 4000 Control
Universal Sensor
Outdoor Sensor
1/2" Knock-out (x 16 back) (x 8 top) (x 8 bottom) (x 2 side)
Pr i m
DHW
Com
Com
Boi l
Com
Boi l 1
Boi l 2
Com
Boi l 3
Boi l 4
Com
t N4
C0
t N4
C1
t N4
C2
t N4
C3
B
( - )
Ret
Fl ue
I n
Out
Out
Out
Out
BACnet I P
Bus b
Bus 1
Bus 2
Bus 3
( +) ( –)
Boi l er
Boi l er
Boi l er
Boi l er
RS485
19
20
21
22 23 24 25
26
27
28
29
30
31
32 33
34 35
36 37
38 39
40 41
Tem per at ur e Sensor s - Do Not Appl y Pow er
t ekm ar Net Com m uni cat i on
Hom e
Heat r oni c 4000
W ARNI NG! Bef or e openi ng
the cover di s connect f r om
4 boi l er cont r ol , DHW , BACnet and M odbus
pow er s uppl y
65 66 67 68 69 70
71 72 73 74
75 76
77 78
79 80
Boi l er 3
Boi l er 4
Boi l er 1
Boi l er 2
Boi l er 3
+
-
+
-
M od
St age 1 St age 2
M od
St age 1 St age 2
Pum p
Pum p
Pum p
11-1/8" (282 mm)
Models & Part Numbers - Replacement Parts
Item
2
3
4
5
Bosch Limited Warranty are the Purchaser's sole responsibility &
obligation. Purchaser shall indemnify & hold Bosch harmless from &
against any & all claims, liabilities & damages of any kind or nature
which arise out of or are related to any such representations or warran-
ties by Purchaser to its customers.
The pass-through Limited Warranty does not apply if the returned Prod-
uct has been damaged by negligence by persons other than Bosch, acci-
dent, fire, Act of God, abuse or misuse; or has been damaged by modifi-
cations, alterations or attachments made subsequent to purchase which
have not been authorized by Bosch; or if the Product was not installed in
compliance with Bosch's instructions &/or the local codes & ordinances;
or if due to defective installation of the Product; or if the Product was not
used in compliance with Bosch's instructions.
THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS
OR IMPLIED, WHICH THE GOVERNING LAW ALLOWS PARTIES TO
CONTRACTUALLY
IMPLIED
WARRANTIES
PARTICULAR
PURPOSE,
PRODUCT,
ITS
OR
TRADEMARKS,
OF
ANY
APPLICABLE
ISLATION;
THE
CONTRACTUALLY EXCLUDED IS LIMITED SUCH THAT IT SHALL NOT
EXTEND BEYOND TWENTY-FOUR (24) MONTHS FROM THE PRODUC-
TION DATE, TO THE EXTENT THAT SUCH LIMITATION IS ALLOWED BY
THE GOVERNING LAW.
Product Warranty Return Procedure All Products that are believed to
have defects in workmanship or materials must be returned, together with
a written description of the defect, to the Bosch Representative assigned
to the territory in which such Product is located. If Bosch receives an
inquiry from someone other than a Bosch Representative, including an
inquiry from Purchaser (if not a Bosch Representative) or Purchaser's
customers, regarding a potential warranty claim, Bosch's sole obligation
shall be to provide the address & other contact information regarding the
appropriate Representative.
57 of 60
A
Gnd
Al er t
Auxi l i ar y
Dr y
42
43 44
45 46
t ekt r a 1056- 02
I nput Pow er :
115 V (ac ) ±1 0%, 60 Hz, 18 VA
Pr i m ar y Pum p Rel ays :
8-1/16"
230 V (ac ) , 10 A, 1/ 2 hp
M ANUAL
Boi l er & DHW Pum ps :
230 V (ac ) , 5 A, 1/ 3 hp
OVERRI DE
(204 mm)
Boi l er St age, Auxi l i ar y &
Al er t Rel ays :
230 V (ac ) , 5 A, 1/ 6 hp
Cal l s : 24 V ( ac) or Shor t
5
158033
Type 1056- XX
Si gnal w i r i ng m us t be
r at ed at l eas t 300 V.
Des i gned and
Terminal Plug Set
assemble d i n C anada
by t ekm ar Cont r ol Sys t em s
7738003454
81 82
83 84
85 86
Boi l er 4
Pow er I n
DHW
Tank
Pum p
L
N
Pum p
Ø 3/16"
(5 mm)
Part #
7738003451
Universal Sensor
7738003452
Outdoor Sensor
7738003453
Enclosure Cover
7738003454
Terminal Plug Set
EXCLUDE,
INCLUDING,
WITHOUT
OF
MERCHANTABILITY
DURABILITY
OR
DESCRIPTION
NON-INFRINGEMENT
OF
ANY
&
ITS
COMPLIANCE
WITH
ENVIRONMENTAL,
HEALTH
TERM
OF
ANY
OTHER
WARRANTY
Enclosure Cover
4
7738003453
Side View
2-15/16" (74 mm)
Description
LIMITATION,
&
FITNESS
FOR
A
OF
THE
RELEVANT
PATENTS
OR
NON-VIOLATION
OR
SAFETY
LEG-
NOT
HEREBY
Heatronic 4000
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