background image

Mini-Combo 

id

Page 3

SECTION 1.
General Information

WARNING

This manual supplies information on the application,
installation and operation of the indirect water
heater unit. A complete instruction manual of the
operation of the hydronic boiler (Document 1080) is
supplied along with this manual. Both manuals
should be reviewed completely before proceeding
with the installation.

Failure to follow the instructions provided may
result in personal injury, death or substantial
property damage.

Any modifications to the boiler, water tank, gas
and water connections, or wiring may void
warranty.

Consult the factory or local factory
representative with any questions or problems
regarding this equipment.

Hazards and Your Safety — Hot Water
Can Scald!

Consumer Product Safety Commission and some

states/provinces recommend a temperature setting of
130°F (54°C) or less. The water heater thermostat is
factory set to approximately 120°F (49°C). If
thermostat will be set above factory setting, install an
anti-scald valve at either the water heater or at each
hot water faucet.

• Tempering valves are not anti-scald valves since

they do not have a positive shutoff in case cold
water supply fails. They are not recommended
for shower/tub service. If needed, install an anti-
scald valve at each shower/tub.

• Water heated to a temperature suitable for

clothes washing, dish washing and other
sanitizing needs can scald and cause permanent
injury.

• Children and elderly, infirm, or physically

handicapped persons are more likely to be
injured by hot water. Never leave them
unattended in a bathtub or shower. Never allow
small children to use a hot water tap or draw
their own bath. If anyone using hot water in the
building fits this description, or if state/province
laws or local codes require certain water
temperature at hot water taps, take special
precautions:

Install an anti-scald valve at water heater or at
each hot water faucet, bath, and shower outlet.

Use lowest practical temperature setting.

• Studies have indicated that dangerous bacteria

can form in potable water distribution system if
certain minimum water temperatures are not
maintained. Contact local health department for
more information.

SECTION 2.
Installation

This installation must conform with the

instructions in this manual and, where applicable:

• Local, state, provincial, and national codes, laws,

regulations and ordinances.

• In Canada — CAN/CGA B149.1 or B149.2

installation Code.

Where the recommendations made in this manual

differ from local or national codes, the local or
national codes take precedence.

2A. Location

This water heater/boiler unit is not intended for

outdoor installation. Select a convenient location
where water leakage from the tank or connections will
not result in damage to areas adjacent to the appliance
or to lower floors of the structure. When a safe
location cannot be found, install a suitable drain pan
under the appliance, and pipe it to an adequate drain.

Figure 1. Closet Installation.

Top Clearance

29

(737)

2

(51)

2

(51)

25.25

(641)

23 (584)

4 (102)

2 (51)

Dimensions
shown in inches
(mm).

57.75

(1467)

63.5

(1613)

Summary of Contents for MCH

Page 1: ...lified installer service agency gas supplier or call the factory Installation and Operation Instructions Document 2101B Note This document is to be used in conjunction with Document 1080 Installation...

Page 2: ...2 LAARS HEATING SYSTEMS TABLE OF CONTENTS SECTION 1 General Information 1A Hazards and Your Safety Hot Water Can Scald 3 SECTION 2 Installation 3 2A Location 5 2B Heater Placement 5 2C Piping 5 2D Wir...

Page 3: ...d elderly infirm or physically handicapped persons are more likely to be injured by hot water Never leave them unattended in a bathtub or shower Never allow small children to use a hot water tap or dr...

Page 4: ...6 125 17 432 Boiler In Out NPT all sizes 1 Gas NPT all sizes Domestic Hot Water all sizes Inlet Outlet NPT Minimum clearances from combustible surfaces Left Side 2 51mm Right Side 2 51mm Rear 2 51mm F...

Page 5: ...MC125 125 806 32 206 Area indicated is for one of two openings One at floor level and one at the ceiling so the total free area would be double the figures indicated Refer to Document 1080 for more i...

Page 6: ...ATERIAL SUITABLE FOR 105 DEGREES C OR ITS EQUIVALENT HOT TANK AQUASTAT BR WALL THERMOSTAT FIELD SUPPLIED P 24V COM SEN NC NO COM TRANSFORMER BK 24V 115V R Y Y G W ZONE PUMP RELAY GROUNDING CONDUCTOR N...

Page 7: ...s Supply Transformer Tank Stat common Domestic Demand N C Heating Demand N O Tank Pump energized High Limit Switch Inducer Energized Fan Proving Switch Heating Pump energized Flame Roll Out Safety Swi...

Page 8: ...Page 8 LAARS HEATING SYSTEMS Figure 8 Parts Identification...

Page 9: ...OD x 12 1 A2085600 Valve Check NPT 13 7 2ft P2015000 Tubing Copper Type L 7 8 OD 14 1 A2085700 Valve Drain Tank NPT 15 1 E0205000 Temperature Control Electronic 16 1 A2085400 Valve Relief Temp Pressur...

Page 10: ...Page 10 LAARS HEATING SYSTEMS...

Page 11: ...Mini Combo id Page 11...

Page 12: ...CA 93021 805 529 2000 FAX 805 529 5934 20 Industrial Way Rochester NH 03867 603 335 6300 FAX 603 335 3355 480 S Service Road West Oakville Ontario Canada L6K 2H4 905 844 8233 FAX 905 844 2635 www laar...

Reviews: