Laars Pennant PNCH, Installation And Operation Instructions Manual

LAARS Heating Systems

Page 4

All installations must be made in accordance 

with:

1) In the U.S., the " National Fuel Gas Code "ANSI 

Z223.1/NFPA54, Latest Edition and all applicable 

local codes as required by the Authorities Having 

Jurisdiction (AHJ), or 

2) In Canada, the "Natural Gas and Propane 

Installation Code", CSA B149.1, latest edition and all 

applicable local codes as required by the AHJ. 

All electrical wiring is to be done in accordance with:

1). In the U.S., the "National Electrical Code" (NEC), 

ANSI/NFPA 70, latest Edition and all applicable local 

codes as required by the AHJ, or

2). In Canada, the “Canadian Electrical Code - Part 

1”, CSA STD. C22.1 and all applicable local codes as 

required by the AHJ. 

This appliance must be electrically grounded in 

accordance with the applicable codes and standards 

referenced above.

1.2  Model Identification

Consult the rating plate on the unit. The 

following information describes the model number 

structure.

Model Character Designation
1-3  Model Series Designation

P  N  C = Pennant

4 Usage

H = Hydronic

V = Volume Water

5-8 Size

0  5  0  0 = 500,000 BTU/h input

0  7  5  0 = 750,000 BTU/h input

1  0  0  0 = 999,000 BTU/h input

1  2  5  0 = 1,250,000 BTU/h input

1  5  0  0 = 1,500,000 BTU/h input

1  7  5  0 = 1,750,000 BTU/h input

2  0  0  0 = 1,999,000 BTU/h input

9 Fuel

N = Natural Gas

P = Propane

10 Altitude

A = 0-10,000 feet

11 Location

C = Indoor and Outdoor

12  Firing Mode

C = On-Off 

13 Revision

2 = Revision Level 2

14  Heat Exchanger

B = Glass-lined CI / copper / brz trim (std. PNCV)

C = Glass-lined cast iron / copper (std. PNCH)

N = Glass-lined cast iron / cu-nickel 

P = Glass-lined cast iron / cu-nickel / brz trim

15  Option Code

X = Standard Low Temp Control

J = CSD-1, FM, IRI, IL

16  Pump Options

H = TACO, Hard water pump (PNCV only)

N = TACO, Normal water pump

S = TACO, Soft water pump (PNCV only)

C = B&G, Hard water pump (PNCV only)

B = B&G, Normal water pump

D = B&G, Soft water pump (PNCV only)

1.3 Warranty

Laars Heating Systems’ appliances are covered 

by a limited warranty. Owners should submit online 

warranty registration at 

www.Laars.com

.

All warranty claims must be made to an authorized 

Laars Heating Systems representative, directly to 

Customer Service, or online at 

www.Laars.com

. 

Claims must include the serial number and model 

(this information can be found on the rating plate), 

installation date, and name of the installer. Shipping 

costs are not included in the warranty coverage.

Some accessory items are shipped in separate 

packages. Verify receipt of all packages listed on 

the packing slip. Inspect everything for damage 

immediately upon delivery, and advise the carrier of 

any shortages or damage. Any such claims should be 

filed with the carrier. The carrier, not the shipper, is 

responsible for shortages and damage to the shipment 

whether visible or concealed.

1.4 Dimensions

See Figure 1.

1.5  Locating the Appliance

The appliance should be located to provide 

clearances on all sides for maintenance and inspection. 

It should not be located in an area where leakage of 

any connections will result in damage to the area 

adjacent to the appliance or to lower floors of the 

structure.

When such a location is not available, it is 

recommended that a suitable drain pan, adequately 

drained, be installed under the appliance. 

The appliance is design certified by CSA-

International for installation on combustible flooring; 

in basements; in closets, utility rooms or alcoves

. 

Pennant Boilers or Water Heaters must never be 

installed on carpeting. 

The location for the appliance 

should be chosen with regard to the vent pipe lengths 

and external plumbing. The unit shall be installed such 

that the gas ignition system components are protected 

from water (dripping, spraying, rain, etc.) during 

operation and service (circulator replacement, control 

replacement, etc.). When vented vertically, the Pennant 

must be located as close as practical to a chimney or 

outside wall. If the vent terminal and/or combustion 

air terminal terminate through a wall, and there is 

potential for snow accumulation in the local area, both 

terminals should be installed at an appropriate level